CONCEPTS: eye, keep, officer, thing

GEN: police officer keeps an eye on things

CONCEPTS: event, trophy, victory

GEN: man lifts the trophy after victory in during event

CONCEPTS: activity, asphyxiate, cloud, produce, villager

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

CONCEPTS: adaptation, environment, organism

GEN:
what kinds of adaptations do these organisms have for their given environments