Nonadecane
Nonadecane is an alkane hydrocarbon with the chemical formula CH3 ( CH2 ) 17CH3 , simplified to C19H40 . 
<triplet> Nonadecane <subj> alkane <obj> instance of <subj> hydrocarbon <obj> instance of <triplet> alkane <subj> hydrocarbon <obj> subclass of <triplet> hydrocarbon <subj> C <obj> has part <subj> H <obj> has part