( ( Identify ( ( each ( compound type ) ) ( -LRB- ( ( ( ( polar covalent ) , ) ( nonpolar ( covalent ( , ionic ) ) ) ) -RRB- ) ) ) ) . )
(ROOT (S (VP (VB Identify) (NP (NP (DT each) (JJ compound) (NN type)) (PRN (-LRB- -LRB-) (NP (JJ polar) (NN covalent)) (, ,) (NP (JJ nonpolar) (NN covalent) (, ,) (NN ionic)) (-RRB- -RRB-)))) (. .)))
Identify each compound type (polar covalent, nonpolar covalent, ionic).
(ROOT (S (NP (NN Hydrogen) (NN chloride)) (VP (VBZ is) (NP (DT a) (JJ covalent) (NN compound))) (. .)))