Concepts: butterfly, feed, flower, nectar
A: white flower with an orange butterfly feeding from its nectar
Q: Keywords: fossil, live, preserve, remain, trace
What is a sentence that includes all these keywords?

A: fossils preserved remains or traces of an organism that lived in the past .
Produce a sentence which mentions all of these concepts: beam, bridge, replace

suspension bridge replace the beam with cable
[Q]: Generate a sentence that includes all the following words: eat, grass, tree, zebra
[A]: some zebras eating some green grass and trees
CONCEPTS: builder, construction, house, work

GEN: a builder works atop a house under construction at a housing development located in the western suburb
Produce a sentence which mentions all of these concepts: country, cross, ski, trail
A person cross country skis down a trail.