Concepts: cover, moss, stump
A: moss on the forest floor and covering a large old stump
Q: Keywords: building, demolish, structure
What is a sentence that includes all these keywords?

A: the building behind structure that will soon be demolished
Produce a sentence which mentions all of these concepts: city, list, top

a city tops the list of new smart cities
[Q]: Generate a sentence that includes all the following words: explode, firework, gate
[A]: fireworks explode next to the sculpture atop the brandenburg gate during new year celebrations
CONCEPTS: eat, rock, specie

GEN: biological species eating a fish by the rocks during sea low tide
[Q]: Generate a sentence that includes all the following words: cannon, city, surround
[A]:
the cannon surrounds a city