use '?' for JOKER (blank)

From letters S, A, L, T, W, O, R, K  I made following words

8 letter words

saltwork[15]

6 letter words

skatol[10], korats[10], taroks[10], troaks[10], trawls[9], tolars[6]

5 letter words

walks[12], warks[12], works[12], kolas[9], skoal[9], larks[9], koras[9], okras[9], korat[9], tarok[9], troak[9], stalk[9], talks[9], karst[9], karts[9], stark[9], skort[9], stork[9], torsk[9], awols[8], sowar[8], trawl[8], straw[8], swart[8], warts[8], strow[8], trows[8], worst[8], worts[8], orals[5], solar[5], tolar[5], altos[5], lotas[5], tolas[5], ratos[5], roast[5], rotas[5], sorta[5], taros[5], toras[5], rotls[5]

4 letter words

walk[11], wark[11], work[11], woks[11], kola[8], lark[8], kora[8], okra[8], koas[8], oaks[8], okas[8], soak[8], arks[8], sark[8], kors[8], talk[8], kart[8], kats[8], skat[8], task[8], alow[7], awol[7], awls[7], laws[7], slaw[7], lows[7], owls[7], slow[7], raws[7], wars[7], rows[7], wart[7], trow[7], wort[7], staw[7], swat[7], taws[7], twas[7], wast[7], wats[7], stow[7], swot[7], tows[7], twos[7], wost[7], wots[7], oral[4], also[4], sola[4], lars[4], oars[4], osar[4], soar[4], sora[4], alto[4], lota[4], tola[4], rato[4], rota[4], taro[4], tora[4], rotl[4], alts[4], last[4], lats[4], salt[4], slat[4], oast[4], oats[4], stoa[4], taos[4], lost[4], lots[4], slot[4], arts[4], rats[4], star[4], tars[4], tsar[4], orts[4], rots[4], sort[4], tors[4]

3 letter words

wok[10], koa[7], oak[7], oka[7], ark[7], kor[7], ask[7], kas[7], ska[7], kos[7], kat[7], tsk[7], awl[6], law[6], low[6], owl[6], raw[6], war[6], row[6], saw[6], was[6], sow[6], wos[6], taw[6], twa[6], wat[6], tow[6], two[6], wot[6], lar[3], oar[3], ora[3], als[3], las[3], sal[3], sol[3], ars[3], ras[3], ors[3], alt[3], lat[3], oat[3], tao[3], lot[3], art[3], rat[3], tar[3], ort[3], rot[3], tor[3], sat[3], tas[3], sot[3]

2 letter words

ka[6], aw[5], ow[5], wo[5], al[2], la[2], lo[2], ar[2], or[2], as[2], os[2], so[2], at[2], ta[2], to[2]