( ( ( ( ( Write ( ( an ( empirical ( or ( molecular formula ) ) ) ) ( for ( ( any ( binary ( ( -LRB- ( 2-element -RRB- ) ) ( covalent compound ) ) ) ) ( given ( its name ) ) ) ) ) ) , ) or ) ( ( write ( the name ) ) ( from ( the ( molecular formula ) ) ) ) ) . )
(ROOT (S (VP (VP (VB Write) (NP (NP (DT an) (JJ empirical) (CC or) (JJ molecular) (NN formula)) (PP (IN for) (NP (NP (DT any) (JJ binary) (PRN (-LRB- -LRB-) (ADJP (JJ 2-element)) (-RRB- -RRB-)) (NN covalent) (NN compound)) (VP (VBN given) (NP (PRP$ its) (NN name))))))) (, ,) (CC or) (VP (VB write) (NP (DT the) (NN name)) (PP (IN from) (NP (DT the) (JJ molecular) (NN formula))))) (. .)))
Write an empirical or molecular formula for any binary (2-element) covalent compound given its name, or write the name from the molecular formula.
(ROOT (S (NP (DT A) (JJ binary) (JJ molecular) (NN compound)) (VP (VBZ is) (VP (VBN made) (PRT (RP up)) (PP (IN of) (NP (CD two) (NNS elements))))) (. .)))