Question: What is the Class when Wessex Trains Pink is the Livery?
SQL: SELECT "Class" FROM "2-15805928-1" WHERE "Livery" = 'Wessex Trains Pink';

Question: What is the Livery when the Number is 31468?
SQL: SELECT "Livery" FROM "2-15805928-1" WHERE "Number" = 31468.0;