Q: Keywords: grass, snow, winter
What is a sentence that includes all these keywords?

A: feet of a man go on grass and snow in winter

Q: Keywords: area, circle, circumference, find
What is a sentence that includes all these keywords?

A: find the circumference and area of each circle .

Q: Keywords: flash, nod, smile
What is a sentence that includes all these keywords?

A:
His father flashes a hint of a smile, then nods.