Objects in image: Billboard
Text visible in image: Haveyou, Have, bought, ticket?, !, All, passengers, must, be, in, possession, on, Metrolink., of, valid, ticket, to, travel, i, Travel, information, and, ticket, machines, are, available, on, platforms., STORE, FIREWORKS, I, Metrolink, Mo
Question: what must every passenger have to travel on the metrolink?
Answers: a valid ticket , ticket, a valid ticket, a valid ticket, valid ticket, a valid ticket, valid ticket, a valid ticket, valid ticket, valid ticket