$ ./hanging-with-friends.pl _o_s wdr
Best letters to guess next:
B T P G N M Y H E L C F J A K I U V 
Top 25 words are:
FOYS
HOYS
KOBS
KOPS
JOES
JOTS
YOKS
JOGS
JOBS
JOYS
EONS
IONS
LOTS
NOES
NOUS
TOES
TONS
TOTS
GOAS
GOES
LOGS
NOGS
TOGS
BOAS
BOTS