CONCEPTS: asphyxiate, cloud, dioxide, produce, villager

GEN: volcanic activity under meromictic lake produced a cloud of carbon dioxide that asphyxiated villagers

CONCEPTS: detail, leave, park

GEN: detail leaves evergreen pine in a park with selective focus

CONCEPTS: drive, kid, teach

GEN: Elderly man teaches a kid to drive a Ferrari.

CONCEPTS: terrain, train, travel

GEN:
A long tanker train looking like a snake and it travels over hilly terrain.