In the given letter-cluster pairs, the first letter-cluster is related to the second letter-cluster following a certain logic. Study the pairs carefully, and from the options, select the pair that follows the same logic.
COWBOY : WOCYOB
TANGLE : NATELG
APICKLE : CIPLKE
BCROWDS : ORDWSC
CFLOWER : OLFREW
DMANGLE : NMALEG