diff --git a/sequoia/bin/simplify_sequoia.py b/sequoia/bin/simplify_sequoia.py
index a6c48829d6370ba2927fd636350c8bc4bcd39426..3d4afda390374938cd9814e6178393ad48bb7bc9 100755
--- a/sequoia/bin/simplify_sequoia.py
+++ b/sequoia/bin/simplify_sequoia.py
@@ -4,6 +4,8 @@ Simplify Sequoia corpus for pedagogical purposes:
 - Remove all range tokens (e.g. "2-3 du" = "2 de" + "3 le"), keep only full tokens
   => Range tokens usually contain no annotation: they mark the presence of a contraction
   => The text may become strange to read, e.g. "L'ambassadrice de le Portugal à les Pays-Bas"
+- Column FEATS (TP3)
+  - Remove extremely rare features appearing only once with a given UPOS
 - Column FRSEMCOR:NOUN (TP4)
   - Remove all supersense annotations for multiword units 
     => keeping multiwords would make data preparation unnecessarily complex
@@ -77,6 +79,19 @@ def simplify_supersense(sent):
   return del_ssense_counter, mod_ssense_counter
 
 #########################################
+
+def simplify_morphology(sent):
+  for token in sent:
+    if token["feats"] :
+      if "Typo" in token["feats"]:
+        del token['feats']['Typo']
+      elif token["upos"] in ["ADV", "NUM"]:
+        if "Number" in token["feats"]:
+          del token['feats']['Number']
+        elif "Gender" in token['feats']:
+          del token['feats']['Gender']      
+
+#########################################
   
 def simplify_mwe_ne(sent):
   ne_ind = 1 # Start new named entities at index 1 in new column
@@ -148,6 +163,7 @@ with open(sys.argv[1], "r", encoding="UTF=8") as f:
     del_ssense_counter = del_ssense_counter + del_ssense_ci
     mod_ssense_counter = mod_ssense_counter + mod_ssense_ci
     del_ne_counter = del_ne_counter + simplify_mwe_ne(sent)
+    simplify_morphology(sent)
 #    subrel_counter = subrel_counter + remove_subrelations(sent)
     if is_projective(sent) : # Returns false to remove sentence
       if sent.metadata.get("global.columns", None): # Add header for new column
diff --git a/sequoia/sequoia-ud.parseme.frsemcor.simple.dev b/sequoia/sequoia-ud.parseme.frsemcor.simple.dev
index d513071bc549e2e0a545b65fcad015431a716948..7f651849ba27a8a615a42357a1817b8a29345334 100644
--- a/sequoia/sequoia-ud.parseme.frsemcor.simple.dev
+++ b/sequoia/sequoia-ud.parseme.frsemcor.simple.dev
@@ -1519,7 +1519,7 @@
 17	le	le	DET	_	Definite=Def|Gender=Masc|Number=Sing|PronType=Art	18	det	_	_	4	*	*
 18	myocarde	myocarde	NOUN	_	Gender=Masc|Number=Sing	15	nmod	_	_	4	*	*
 19	sans	sans	ADP	_	_	20	case	_	_	*	*	*
-20	sus	sus	NOUN	_	Typo=Yes	15	nmod	_	CorrectForm=sus-décalage	5:_|MWE|LEX	*	*
+20	sus	sus	NOUN	_	_	15	nmod	_	CorrectForm=sus-décalage	5:_|MWE|LEX	*	*
 21	décalage	_	X	_	_	20	goeswith	_	_	5	*	*
 22	de	de	ADP	_	_	24	case	_	_	5	*	*
 23	le	le	DET	_	Definite=Def|Gender=Masc|Number=Sing|PronType=Art	24	det	_	_	5	*	*
diff --git a/sequoia/sequoia-ud.parseme.frsemcor.simple.full b/sequoia/sequoia-ud.parseme.frsemcor.simple.full
index fafca9d26c480c91385340e4e1fd42d093ddce07..56093b321a8e88b7276ad49bb8452d8a1651a3e4 100644
--- a/sequoia/sequoia-ud.parseme.frsemcor.simple.full
+++ b/sequoia/sequoia-ud.parseme.frsemcor.simple.full
@@ -14461,7 +14461,7 @@
 17	le	le	DET	_	Definite=Def|Gender=Masc|Number=Sing|PronType=Art	18	det	_	_	4	*	*
 18	myocarde	myocarde	NOUN	_	Gender=Masc|Number=Sing	15	nmod	_	_	4	*	*
 19	sans	sans	ADP	_	_	20	case	_	_	*	*	*
-20	sus	sus	NOUN	_	Typo=Yes	15	nmod	_	CorrectForm=sus-décalage	5:_|MWE|LEX	*	*
+20	sus	sus	NOUN	_	_	15	nmod	_	CorrectForm=sus-décalage	5:_|MWE|LEX	*	*
 21	décalage	_	X	_	_	20	goeswith	_	_	5	*	*
 22	de	de	ADP	_	_	24	case	_	_	5	*	*
 23	le	le	DET	_	Definite=Def|Gender=Masc|Number=Sing|PronType=Art	24	det	_	_	5	*	*
@@ -17189,7 +17189,7 @@
 # sent_id = emea-fr-dev_00222
 # text = Troubles musculo squelettiques, du tissu conjonctif et des os
 1	Troubles	trouble	NOUN	_	Gender=Masc|Number=Plur	0	root	_	_	*	State	*
-2	musculo	musculo	ADJ	_	Typo=Yes	1	amod	_	CorrectForm=musculo-squelettiques	*	*	*
+2	musculo	musculo	ADJ	_	_	1	amod	_	CorrectForm=musculo-squelettiques	*	*	*
 3	squelettiques	_	X	_	_	2	goeswith	_	_	*	*	*
 4	,	,	PUNCT	_	_	7	punct	_	_	*	*	*
 5	de	de	ADP	_	_	7	case	_	_	*	*	*
@@ -42396,7 +42396,7 @@
 27	l'	le	DET	_	Definite=Def|Number=Sing|PronType=Art	28	det	_	_	*	*	*
 28	embargo	embargo	NOUN	_	Gender=Masc|Number=Sing	25	nmod	_	_	*	Act	*
 29	,	,	PUNCT	_	_	22	punct	_	_	*	*	*
-30	faute	faute	ADV	_	Gender=Fem|Number=Sing	22	advmod	_	_	2:ADP|MWE|IRREG	*	*
+30	faute	faute	ADV	_	Gender=Fem	22	advmod	_	_	2:ADP|MWE|IRREG	*	*
 31	de	de	ADP	_	_	32	case	_	_	2	*	*
 32	produits	produit	NOUN	_	Gender=Masc|Number=Plur	30	obl:arg	_	_	*	Food	*
 33	alimentaires	alimentaire	ADJ	_	Number=Plur	32	amod	_	_	*	*	*
@@ -75442,7 +75442,7 @@
 3	août	août	NOUN	_	Gender=Masc|Number=Sing	2	nmod	_	_	*	*	*
 4	,	,	PUNCT	_	_	13	punct	_	_	*	*	*
 5	les	le	DET	_	Definite=Def|Number=Plur|PronType=Art	9	det	_	_	*	*	*
-6	neuf	neuf	NUM	_	Gender=Masc|NumType=Card	9	amod	_	ExtPos=ADJ	*	*	*
+6	neuf	neuf	NUM	_	NumType=Card	9	amod	_	ExtPos=ADJ	*	*	*
 7	cent	cent	NUM	_	NumType=Card	6	fixed	_	_	*	*	*
 8	vingt	vingt	NUM	_	NumType=Card	6	fixed	_	_	*	*	*
 9	photos	photo	NOUN	_	Gender=Fem|Number=Plur	13	nsubj:pass	_	_	*	Artifact	*
diff --git a/sequoia/sequoia-ud.parseme.frsemcor.simple.test b/sequoia/sequoia-ud.parseme.frsemcor.simple.test
index 226136b933e23c69a1c9d8fe3967cdd63d12f25f..94e45f008447ee0db04a7854ea7c7e8c5eb05303 100644
--- a/sequoia/sequoia-ud.parseme.frsemcor.simple.test
+++ b/sequoia/sequoia-ud.parseme.frsemcor.simple.test
@@ -1272,7 +1272,7 @@
 27	l'	le	DET	_	Definite=Def|Number=Sing|PronType=Art	28	det	_	_	*	*	*
 28	embargo	embargo	NOUN	_	Gender=Masc|Number=Sing	25	nmod	_	_	*	Act	*
 29	,	,	PUNCT	_	_	22	punct	_	_	*	*	*
-30	faute	faute	ADV	_	Gender=Fem|Number=Sing	22	advmod	_	_	2:ADP|MWE|IRREG	*	*
+30	faute	faute	ADV	_	Gender=Fem	22	advmod	_	_	2:ADP|MWE|IRREG	*	*
 31	de	de	ADP	_	_	32	case	_	_	2	*	*
 32	produits	produit	NOUN	_	Gender=Masc|Number=Plur	30	obl:arg	_	_	*	Food	*
 33	alimentaires	alimentaire	ADJ	_	Number=Plur	32	amod	_	_	*	*	*
diff --git a/sequoia/sequoia-ud.parseme.frsemcor.simple.train b/sequoia/sequoia-ud.parseme.frsemcor.simple.train
index d7df3de16652f8a8b16b2fd2360bdfbc959bf095..a6305d82ca8d869371e26c3f98635490ad9cf4a4 100644
--- a/sequoia/sequoia-ud.parseme.frsemcor.simple.train
+++ b/sequoia/sequoia-ud.parseme.frsemcor.simple.train
@@ -12114,7 +12114,7 @@
 # sent_id = emea-fr-dev_00222
 # text = Troubles musculo squelettiques, du tissu conjonctif et des os
 1	Troubles	trouble	NOUN	_	Gender=Masc|Number=Plur	0	root	_	_	*	State	*
-2	musculo	musculo	ADJ	_	Typo=Yes	1	amod	_	CorrectForm=musculo-squelettiques	*	*	*
+2	musculo	musculo	ADJ	_	_	1	amod	_	CorrectForm=musculo-squelettiques	*	*	*
 3	squelettiques	_	X	_	_	2	goeswith	_	_	*	*	*
 4	,	,	PUNCT	_	_	7	punct	_	_	*	*	*
 5	de	de	ADP	_	_	7	case	_	_	*	*	*
@@ -53929,7 +53929,7 @@
 3	août	août	NOUN	_	Gender=Masc|Number=Sing	2	nmod	_	_	*	*	*
 4	,	,	PUNCT	_	_	13	punct	_	_	*	*	*
 5	les	le	DET	_	Definite=Def|Number=Plur|PronType=Art	9	det	_	_	*	*	*
-6	neuf	neuf	NUM	_	Gender=Masc|NumType=Card	9	amod	_	ExtPos=ADJ	*	*	*
+6	neuf	neuf	NUM	_	NumType=Card	9	amod	_	ExtPos=ADJ	*	*	*
 7	cent	cent	NUM	_	NumType=Card	6	fixed	_	_	*	*	*
 8	vingt	vingt	NUM	_	NumType=Card	6	fixed	_	_	*	*	*
 9	photos	photo	NOUN	_	Gender=Fem|Number=Plur	13	nsubj:pass	_	_	*	Artifact	*