sentences: hydrochloric is a kind of acid
docs: hydrocyanic_acid is acid. hydrobromic_acid is acid. hydrochloric_acid is chemical_compound. hydrochloric_acid is acid. hydroiodic_acid is acid. chlorous_acid is acid. hydrofluoric_acid is acid. hydrocyanic_acid is chemically_acidic_substance. chloric_acid is acid. muriatic_acid is hydrochloric_acid.