QUADRUPLICATING

aa ad ag ai al an ar at id in it la li na nu pa pi qi ta ti un up ut

aal act aga aid ail ain air ait ala alp alt ana and ani ant apt arc art cad can cap car cat cig cru cud cup cur cut dag dal dan dap dig din dip dit dug dui dun dup gad gal gan gap gar gat gid gin gip git gnu gul gun gut lac lad lag lap lar lat lid lin lip lit lug nag nap nil nip nit nut pac pad pal pan par pat pia pic pig pin pit piu pud pug pul pun pur put qat qua rad rag rai ran rap rat ria rid rig rin rip rug run rut tad tag tan tap tar tau tic til tin tip tug tui tun tup ulu urd urn urp uta

acid acta adit agar agin airn airt alan alar alga alit anal anga anil anta anti aqua aria arid aril atap auld aunt aura cadi caid cain cant card carl carn carp cart caul clad clag clan clap clip crag crap crit crud cult cunt curd curl curn curt dang darn dart data daut dial ding dint dipt dirl dirt dita drag drat drip drug dual duci duct duit dung dunt dura durn gadi gain gait gala gaud gaun gaur gild gilt gird girl girn girt glad glia glut gnar gnat grad gran grat grid grin grip grit guan guar guid gulp guru iglu ilia inia inti irid laic laid lain lair land lang lard lari lati latu laud liar ling lint lipa lira liri litu luau luna lung lunt nada nail nala napa narc nard nidi nipa nurd nurl paca pact padi paid pail pain pair pang pant para pard part pial pian pica pili pina ping pint pirn pita plan plat plug prat prau prig ptui pula puli puna pung punt puri purl qadi qaid quad quag quai quid quin quip quit raga ragi raia raid rail rain rand rang rani rant rapt rial rind ring ruga ruin rung runt tail tain tala talc tali tang tapa tarn tarp ting tipi tirl trad trap trig trip trug tuna tung turd turn ulan ulna unai unau unci unit uric