ConceptNet

An encyclopedia of concept simulations that computers and humans can learn from.

An experimental project in machine learning.

stack

a pile of things, one on top of another.

cover

to put something over or on something else.

crumble

break or fall apart into small fragments, especially over a period of time as part of a process of deterioration

cliff

the high, steep side of a mountain or rock.

flap

to move up and down.

drip

to fall slowly, drop by drop.

crush

to damage something by squeezing it very hard.

meet

to come face-to-face with another person

sort

to arrange things into different types or groups.