Concepts: arrive, militant, reinforce, siege, troop
A: troops arrive at their barracks to reinforce fellow troops following the siege by militants
Q: Keywords: bore, granite, tunnel
What is a sentence that includes all these keywords?

A: a tunnel bored through solid granite .
Produce a sentence which mentions all of these concepts: countryside, pond, tree

small frozen pond with reeds and willow trees in the countryside
[Q]: Generate a sentence that includes all the following words: competition, golfer, recur, walk
[A]: golfers walk the sixth fairway during a practice round for recurring competition .
CONCEPTS: city, region, surround

GEN: indigenous tribes still dot region surrounding the city .
CONCEPTS: building, clock, night, top

GEN:
A red building at night with a clock at the top of the building.