CONCEPTS: match, observe, team

GEN: rugby union team observe the national anthem during the match .

CONCEPTS: environment, organism, study

GEN: what is ecology the study of how organisms interact with each other and with their environments

CONCEPTS: cancer, find, help

GEN: organic foods have been found to not help in the fight against cancer

CONCEPTS: eat, fence, grass, side

GEN:
Two zebras side by side eating grass inside a fence.