Having buddha nature:
ALABAMA
AKASAKA
ASAKUSA
AZABUJUBAN
AAAA
LBM
ALBMA
ALABA
BLM
EGG
AAA
HAM
JAM
BLT
ASAKA
AZZA
AZZZA
AZZZZA
BZZB
BZZZB
Lacking buddha nature:
MISSISSIPI
GEORGIA
PORCUPINE
KOANPINE
PINECONE
CONECONE
INVISIBLE
I
OSAKA
HINAMIZAWA
A
BML
LMB
MBL
ABA
ASAKO
LJUBLJANA
LABURNUM
BIRMINGHAM
BLAM
CLAM
SPAM
AND
LEMMING
AA
DLAM
ELAM
FLAM
GLAM
MLB
LOBSTER
THERMIDOR
ASAKUSO
AZA
BZB