input question: Generate a sentence, and then tell me the concepts included in that sentence.
output answer: Sentence: this waterfall is located on the trail just north of a city .
Concepts: city
trail
waterfall

input question: Generate a sentence, and then tell me the concepts included in that sentence.
output answer: Sentence: the relative size of the planets in star system
Concepts: planet
size
system

input question: Generate a sentence, and then tell me the concepts included in that sentence.
output answer: Sentence: large group of tourists visiting succession of waterfalls
Concepts: tourist
visit
waterfall

input question: Generate a sentence, and then tell me the concepts included in that sentence.
output answer:
Sentence: the hall leading from the main school building to the temporary classrooms .
Concepts: building
classroom
hall