MONOPHOTAL

ah al am an at ha hm ho la lo ma mo na no oh om on op pa ta to

alp alt amp ant apo apt ham hao hap hat hon hop hot lam lap lat loo lop lot man map mat mho moa mol mon moo mop mot nah nam nap noh nom noo not nth oat ohm oho ono ooh oot opt pah pal pam pan pat pht poh pol pom poo pot tam tan tao tap tho tom ton too top

alto atom atop halm halo halt hant holm holp holt homo hoop hoot lamp lath loam loan loom loon loop loot lota loth malt mano math moan moat mola molt mono mool moon moot moth nolo noma nota oath onto opah opal palm pant path phat phon phot plan plat plot polo pomo pooh pool poon tamp than tola tool toom toon toph topo