undecidable problem

bellidifolium coiners corycaeus (ditrichocorycaeus) dahli criminal wave drum-type hay loader fissionable substance fog signal light graphite-like structure liebeslieder microlepia formosana ching nonreactive load phyllobrotica shirozui plicae epididymidis quick-change gear lathe ring shear apparatus rump roast spermaster spheric holder verbatim record Wittons