Woody words, tinny words
Python 2, 99 73 65 64 63 bytes



lambda s:'PVC'*('ea'in s)or'wtoiondnyy'[s[-2:]in'instperit'::2]


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Alternatives also with 63 bytes:

lambda s:'PVC'*('ea'in s)or'wtoiondnyy'[s[-6::5]in'dtenmsr'::2]
lambda s:'PVC'*('ea'in s)or'wtoiondnyy'[s[::5]in'lrinaosit'::2]