CONCEPTS: class, classroom, grader

GEN: first and second graders leave the classroom after a class in human language

CONCEPTS: club, karaoke, singe

GEN: In a club people are singing karaoke and dancing

CONCEPTS: fly, sea, specie

GEN: biological species flies above the sea

CONCEPTS: grow, rock, waterfall

GEN:
ferns and ivy growing from rock next to a small waterfall