Concepts: believe, change, world
A: never believe that a few caring people cant change the world .
Q: Keywords: checkpoint, guard, soldier, stand
What is a sentence that includes all these keywords?

A: soldiers stand guard at checkpoint .
Produce a sentence which mentions all of these concepts: airplane, airport, sit

A twin engine airplane sitting at an airport.
[Q]: Generate a sentence that includes all the following words: fill, size, vary
[A]: the bar and corner shelves filled high with blue vases of varying shapes and sizes .
CONCEPTS: complain, footballer, match

GEN: footballer complains to referee during the match .
Produce a sentence which mentions all of these concepts: bat, cat, moon
the black cat and the bat in the light of full moon