TROPHOBLASTS

ab ah al ar as at ba bo ha ho la lo oh op or os pa sh so ta to

abo abs ahs alb alp als alt apo apt arb ars art ash asp ass att bah bal bap bar bas bat boa boo bop bos bot bra bro hao hap has hat hob hop hos hot lab lap lar las lat lob loo lop lot oar oat oba oho ohs ooh oot ops opt ora orb ors ort pah pal par pas pat pht poh pol poo pot pro pst rah rap ras rat rho rob rot sab sal sap sat sha sob sol sop sos sot spa tab tao tap tar tas tat tho too top tor tot

abos albs alps also alto alts apos arbs arts asps atop baht bals baps bars bash bass bast bath bats batt blah blat blot boar boas boat boho bola bolo bolt boor boos boot bops bora bort bosh boss bota both bots bott bras brat broo bros halo halt haps harl harp hart hasp hast hats hoar hobo hobs holp hols holt hoop hoot hops hora host hots labs laps lars lash lass last lath lats lobo lobs loop loos loot lops loss lost lota loth lots oars oast oath oats obas obol oohs oops oots opah opal opts oral orbs orts osar ossa otto pals pars part pash pass past path pats phat phot plat plot polo pols pooh pool poor poos port posh post pots prao prat proa pros psst raps rapt rash rasp rath rato rats rhos robs root rota rotl roto rots sabs salp sals salt saps sash shat shoo shop shot slab slap slat slob slop slot soap soar soba sobs sola solo sols soot soph sops sora sorb sort soth sots spar spas spat spot stab star stat stoa stob stop stot tabs tahr taos taps taro tarp tars tart tass tats that thro tola tool toot toph topo tops tora toro tors tort tosh toss tost tots trap trop trot tsar