Fictional Cats Crypto-Families

Crypto-families are lists of related words that are encrypted with a letter substitution. In this case, all the lists are related to fictional cats. Each list uses a different letter substitution. An example of a letter substitution encrytion is like this: The word CAT could be encoded to ABC if C=A, A=B, T=C.

SET 1 THDW OIENP NBD YTN UHECDI TRHTF KTIOEDHG ZQRR EF LUUNR LTLX SUD IQOQR LTKBDDIT	SET 2 LSHVZK ZOZZK NEVZEDJV NOI XOIR ZEVJV XEOH NEPJNE QPNDMVJ ZD OHA OB NSYOJAQK QDSH QPHV
SET 3 VDSPL XZYYWVALQWV SDJY VQYNPLJJ IHXAGVV SDOOGQV MGJDT SZ. UDQT OAG XLO DQ OAG ALO MDCLZY	SET 4 EKAJWJ MQE WCYRGWMGO WHQUTGYY VOJPC BJM VJM NGJMNBYSAA EO. TSLLYGWUQOMN WCYRGWMGO BJMTGOM