Added new file relating to query_t -> predicate_t
Added new file relating to query_t -> predicate_t

paulbdavis/ledger,paulbdavis/ledger,duncanmortimer/ledger,ledger/ledger,duncanmortimer/ledger,afh/ledger,paulbdavis/ledger,paulbdavis/ledger,duncanmortimer/ledger,jwakely/ledger,afh/ledger,duncanmortimer/ledger,duncanmortimer/ledger,jwakely/ledger,jwakely/ledger,afh/ledger,duncanmortimer/ledger,paulbdavis/ledger,jwakely/ledger,paulbdavis/ledger,ledger/ledger,jwakely/ledger,jwakely/ledger,jwakely/ledger,paulbdavis/ledger,afh/ledger,afh/ledger,ledger/ledger,ledger/ledger,ledger/ledger,duncanmortimer/ledger