UNSTUPIDLY

id in is it li nu pi si ti un up us ut

din dip dis dit dui dun dup ids ins its lid lin lip lis lit nil nip nit nus nut pin pis pit piu ply psi pst pud pul pun pus put sin sip sit sly spy sty sun sup syn til tin tip tis tui tun tup ulu uns ups uts yid yin yip yup

dins dint dips dipt dits duit duly duns dunt dups dust duty idly idyl inly lids lins lint liny lips lisp list lits litu lunt luny lust nils nips nits nuts pily pins pint piny pits pity plus ptui puds puli puls puns punt puny puts pyin sild silt slid slip slit slut snip snit spin spit spud spun stud stun suit sulu syli tidy tils tins tiny tips tuis tuns tups tyin ulus undy unit yids yins yips yups