FINGERSPIN

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egis engs ergs erns fens fern figs fine fins fire firn firs frig gens gien gies gins gips girn grin grip inns ires iris negs neif nine nips nisi pegs pein pens peri pier pies pigs pine ping pins pirn prig refs regs reif rein reis reps rife rifs rigs ring rins ripe rips rise seif serf sign sine sing sipe sire snip spin