CONCEPTS: crawl, ground, laugh

GEN: Two babies crawl on the ground and play while they laugh at each other.

CONCEPTS: ceremony, friend, thursday

GEN: a student gets congratulated by his friends after his graduation ceremony on thursday .

CONCEPTS: bench, rest, trail

GEN: one of many resting benches along the trail .

CONCEPTS: endanger, swim, turtle

GEN:
swimming beside a giant endangered sea turtle .