mammals
hierarchy convertible into a matrix (Broadbent & al. 1978 - quoted by Lieury 1980)
wild
predators
lion
tiger
panther
leopard
non-predators
elephant
giraffe
gazelle
hippopotamus
domestic
farm
cow
sheep
pig
goat
pets
dog
cat
Guinea pig
hamster
matrix
a matrix such as this one is based on intersection - same source (primary and secondary)
farm
cow, sheep, pig, goat
chicken, turkey, duck, goose
pets
canary, parrot, budgie, dove
dog, cat, Guinea pig, hamster
mammals
Added: 2009-01-07 21:51:32
From: (Joined 2008-12-21 19:10:19)
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mammals