CONCEPTS: musician, orchestra, violin

GEN: musicians playing violins in the orchestra

CONCEPTS: help, nurse, walker

GEN: nurse helps her grandmother to go to the walker .

CONCEPTS: clear, debris, protest, street

GEN: a digger clears debris off the street the morning after protests against the summit escalated .

CONCEPTS: ceremony, rain, shelter

GEN:
before the ceremony the rain came and everyone sought shelter .