PENUMBRAL

ab ae al am an ar ba be el em en er la ma me mu na ne nu pa pe re um un up

alb ale alp amp amu ane ape arb are arm bal bam ban bap bar bel ben bra bum bun bur ear eau elm emu era ern lab lam lap lar lea leu lum mae man map mar mel men mun nab nae nam nap neb nub pal pam pan par pea pen per pub pul pun pur ram ran rap reb rem rep rub rue rum run ump urb urn urp

able alme alum amen aper arum bale balm bane bare barm barn beam bean bear beau bema berm blae blam blue blur brae bran bren bump buna bura burl burn burp earl earn elan lamb lame lamp lane lean leap lear lube luma lump luna lune lure mabe male mane mare marl maul maun meal mean menu merl mule mura mure nabe name nape neap near nema neum numb nurl pale palm pane pare peal pean pear perm plan plea pleb plum pram prau pula pule puma puna pure purl rale ramp rape real ream reap rube rule rump rune ulan ulna unbe urea