ConceptNet

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

An experimental project in machine learning.

drip

to fall slowly, drop by drop.

flap

to move up and down.

sort

to arrange things into different types or groups.

meet

to come face-to-face with another person

cliff

the high, steep side of a mountain or rock.

stack

a pile of things, one on top of another.

crumble

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

crush

to damage something by squeezing it very hard.

cover

to put something over or on something else.