INTERFUSE

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efts enuf erne erns erst esne etui fees feet fens fere fern fest fete fets feus fine fins fire firn firs fist fits free fret frit funs furs fuse ires neif nest nets nite nits nuts reef rees refs reft reif rein reis rent rest rete rets rife rifs rift rins rise rite rues ruin rune runs runt ruse rust ruts seen seer seif sene sent sere serf sift sine sire site snit stir stun suer suet suit sure surf teen tees tens tern tier ties tine tins tire tree tref tres true tuis tune tuns turf turn unit urns user utes