CONCEPTS: ground, look, worker

GEN: Two construction workers complete a task near the ground while a third worker looks on.

CONCEPTS: eat, giraffe, grass, neck

GEN: A giraffe cranes his neck to eat some grass.

CONCEPTS: ecology, environment, organism

GEN: ecology the study of how organisms interact with their environment

CONCEPTS: city, school, student

GEN:
students walk to school east into the rising sun down a city