CONCEPTS: light, prism, rainbow

GEN: when white light travels through a prism it comes out a rainbow .

CONCEPTS: ground, lie, smile

GEN: mother and baby lay on the ground together smiling

CONCEPTS: footballer, leave, match, team

GEN: footballer leaves the pitch following victory during the match between soccer team and football team .

CONCEPTS: alcohol, effect, sleep

GEN:
we look at how alcohol negatively impacts sleep and the effects of alcohol on sleep .