TransactionStatement <- BeginTransaction / RollbackTransaction / CommitTransaction

BeginTransaction <- StartOrBegin Transaction? ReadOrWrite?
RollbackTransaction <- AbortOrRollback Transaction?
CommitTransaction <- CommitOrEnd Transaction?

StartOrBegin <- 'START' / 'BEGIN'
Transaction <- 'WORK' / 'TRANSACTION'
ReadOrWrite <- 'READ' ('ONLY' / 'WRITE')
AbortOrRollback <- 'ABORT' / 'ROLLBACK'
CommitOrEnd <- 'COMMIT' / 'END'