( ( This ( heterogeneous mixture ) ) ( ( is ( called ( a ( eutectic mixture ) ) ) ) . ) )
(ROOT (S (NP (DT This) (JJ heterogeneous) (NN mixture)) (VP (VBZ is) (VP (VBN called) (NP (DT a) (JJ eutectic) (NN mixture)))) (. .)))
This heterogeneous mixture is called a eutectic mixture .
(ROOT (S (NP (NNS Heterogeneous)) (VP (VBZ is) (NP (NP (DT the) (NN term)) (PP (IN for) (NP (NP (DT a) (NN mixture)) (SBAR (WHNP (WDT that)) (S (VP (VBZ varies) (PP (IN in) (NP (PRP$ its) (NN composition)))))))))) (. .)))