7 files changed, 0 insertions, 7 deletions
diff --git a/prolog/problems/sets/diff_3/common.py b/prolog/problems/sets/diff_3/common.py
index 82a6fe9..fee93b2 100644
--- a/prolog/problems/sets/diff_3/common.py
+++ b/prolog/problems/sets/diff_3/common.py
@@ -1,7 +1,6 @@
 # coding=utf-8
 
 id = 130
-group = 'sets'
 number = 37
 visible = True
 facts = None
diff --git a/prolog/problems/sets/intersect_3/common.py b/prolog/problems/sets/intersect_3/common.py
index b2250e6..501cdf3 100644
--- a/prolog/problems/sets/intersect_3/common.py
+++ b/prolog/problems/sets/intersect_3/common.py
@@ -1,7 +1,6 @@
 # coding=utf-8
 
 id = 129
-group = 'sets'
 number = 36
 visible = True
 facts = None
diff --git a/prolog/problems/sets/is_subset_2/common.py b/prolog/problems/sets/is_subset_2/common.py
index 330ca21..4047146 100644
--- a/prolog/problems/sets/is_subset_2/common.py
+++ b/prolog/problems/sets/is_subset_2/common.py
@@ -1,7 +1,6 @@
 # coding=utf-8
 
 id = 132
-group = 'sets'
 number = 39
 visible = True
 facts = None
diff --git a/prolog/problems/sets/is_superset_2/common.py b/prolog/problems/sets/is_superset_2/common.py
index 356ca34..86e5dc7 100644
--- a/prolog/problems/sets/is_superset_2/common.py
+++ b/prolog/problems/sets/is_superset_2/common.py
@@ -1,7 +1,6 @@
 # coding=utf-8
 
 id = 131
-group = 'sets'
 number = 38
 visible = True
 facts = None
diff --git a/prolog/problems/sets/powerset_2/common.py b/prolog/problems/sets/powerset_2/common.py
index 1561eed..c825430 100644
--- a/prolog/problems/sets/powerset_2/common.py
+++ b/prolog/problems/sets/powerset_2/common.py
@@ -1,7 +1,6 @@
 # coding=utf-8
 
 id = 134
-group = 'sets'
 number = 41
 visible = True
 facts = None
diff --git a/prolog/problems/sets/subset_2/common.py b/prolog/problems/sets/subset_2/common.py
index 4cc2260..130d87b 100644
--- a/prolog/problems/sets/subset_2/common.py
+++ b/prolog/problems/sets/subset_2/common.py
@@ -1,7 +1,6 @@
 # coding=utf-8
 
 id = 133
-group = 'sets'
 number = 40
 visible = True
 facts = None
diff --git a/prolog/problems/sets/union_3/common.py b/prolog/problems/sets/union_3/common.py
index bd77d3a..2a14245 100644
--- a/prolog/problems/sets/union_3/common.py
+++ b/prolog/problems/sets/union_3/common.py
@@ -1,7 +1,6 @@
 # coding=utf-8
 
 id = 128
-group = 'sets'
 number = 35
 visible = True
 facts = None