UNFLAPPABILITY

aa ab ai al an at ay ba bi by fa if in it la li na nu pa pi ta ti un up ut ya

aal aba aby aft ail ain ait ala alb all alp alt ana ani ant any app apt baa bal ban bap bat bay bin bit bun but buy fab fan fat fay fib fil fin fit flu fly fub fun ill lab lap lat lay lib lin lip lit nab nap nay nib nil nip nit nub nut pal pan pap pat pay pia pin pip pit piu ply pub pul pun pup put pya tab tan tap tau til tin tip tub tui tun tup uta yap yin yip yup

ably abut alan alba alfa alif alit ally anal anil anta anti atap aunt ayin baal bail bait ball bani bill bint blat blin blip bull buna bunt fail fain fall faun fiat fila fill flab flan flap flat flay flip flit flub full ilia illy inby inia inly inti lain lati latu lift lilt lily lint liny lipa litu luna lunt luny naif nail nala napa nill nipa null pail pain pall palp paly pant papa paty pfui pial pian pili pill pily pina pint piny pipy pita pity plan plat play ptui pula puli pull pulp puna punt puny pupa pyin tabu tail tain tala tali tall tapa till tiny tipi tuba tufa tuna tyin typp ulan ulna unai unit upby yaup yill yuan