ACE; CES; CET; CLE; COX; ECO; EST; LES; LET; NEE; NEO; NES; OSE; OST; SEC; SEL; SEN; SES; SET; SOC; TEC; TEE; TEL; TES.
ACES; AXOA; CLES; COXA; ECOS; LESE; LEST; NEES; NEOS; OSEE; OSES; SECS; SELS; SENE; SETS; SOCS; TEES; TELS.
LESEE; OSEES.