( ( Homogeneous and ) ( Heterogeneous Mixtures ) )
(ROOT (NP (NP (NNS Homogeneous)) (CC and) (NP (NNP Heterogeneous) (NNP Mixtures))))
Homogeneous and Heterogeneous Mixtures
(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)))))))))) (. .)))