CONCEPTS: grid, latitude, line, longitude

GEN: adding additional lines of latitude and longitude forms a grid

CONCEPTS: coast, drift, migrant, mile, wait

GEN: migrants wait to be rescued as they drift nautical miles north off the coast .

CONCEPTS: head, skier, slope

GEN: Skiers are headed down a small slope by their cabin.

CONCEPTS: continue, player, session

GEN:
cricket player leads uk constituent country out for a training session as the countdown continues