( Mylar ( ( is ( ( a ( trade name ) ) ( for ( a ( PETE film ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Mylar)) (VP (VBZ is) (NP (NP (DT a) (NN trade) (NN name)) (PP (IN for) (NP (DT a) (NNP PETE) (NN film))))) (. .)))
Mylar is a trade    name for a PETE film.
(ROOT (S (NP (NP (DT The) (NN name)) (PP (IN of) (NP (NP (NN film)) (SBAR (IN that) (S (NP (NN polyester) (NNS fibers)) (VP (VBP form))))))) (VP (VBZ is) (ADJP (JJ mylar))) (. .)))