SELECT lost FROM table_name_52 WHERE played = "22" AND losing_bp = "2" AND club = "merthyr rfc"
Berapa jumlah total permainan yang hilang ketika 22 telah dimainkan, nomor BP yang kalah adalah 2, dan klub itu Merthyr RFC?
CREATE TABLE table_name_52 (lost VARCHAR, club VARCHAR, played VARCHAR, losing_bp VARCHAR)