( ( Process ( wherein ( ( ( ( ( ( ( ( ( elemental carbon ) , ) ( an ( inorganic carbide ) ) ) , ) ( carbon disulfide ) ) , ) or ) ( a ( carbon oxide ) ) ) ( is ( ( employed ( as ( ( a source ) ( of carbon ) ) ) ) ( in ( the product ) ) ) ) ) ) ) . )
(ROOT (S (VP (VB Process) (SBAR (WHADVP (WRB wherein)) (S (NP (NP (JJ elemental) (NN carbon)) (, ,) (NP (DT an) (JJ inorganic) (NN carbide)) (, ,) (NP (NN carbon) (NN disulfide)) (, ,) (CC or) (NP (DT a) (NN carbon) (NN oxide))) (VP (VBZ is) (VP (VBN employed) (PP (IN as) (NP (NP (DT a) (NN source)) (PP (IN of) (NP (NN carbon))))) (PP (IN in) (NP (DT the) (NN product)))))))) (. .)))
Process wherein elemental carbon, an inorganic carbide, carbon disulfide, or a carbon oxide is employed as a source of carbon in the product.
(ROOT (S (NP (NP (JJ Binary) (NNS compounds)) (PP (IN of) (NP (NP (NN carbon)) (PP (IN with) (NP (ADJP (RBR less) (JJ electronegative)) (NNS elements)))))) (VP (VBP are) (VP (VBN called) (NP (NNS carbides)))) (. .)))