sufr sufs sufu suha suhr sur- sura surc surd surf surr surs suru sus- susa susd suss susu suus uaca uafa uahs uarc uars uaru uasa uasd uaua ucad ucar ucas ucca ucdc ucdd ucfa ucha uchs ucrc ucsa ucsc ucsd ucsf ucsu ucua udaa udad udar udas udau udca udds udra udsd ufcu uffa ufra uh-d uhrs uhss uhuh urac urad uras urau urca urch urda urds urdu urfa urff urra urrh ursa urss ursu urur urus us-a usaa usac usad usaf usar usas usca uscc uscf usch uscs usda usdc usdf usds usfa usfc usfs usha ushr ushs ushu usra ussa ussc ussf ussr usss ussu usua usus uuuu