black rat subgroup of rat, 11 assertions
AtLocation 3
shipping ports 0.43
european cities 0.40
tree 0.16
HasA 2
pointed nose 0.25
slender body 0.25
HasProperty 5
smaller 0.52
rare 0.49
nocturnal 0.47
black 0.32
more common 0.25
ReceivesAction 1
kept 0.32