sentence2_structure: a substance<>has<>a ph value greater than 7
sentence1: A substance with a pH of 14 indicates a (A) weak acid (B) strong acid (C) strong base (D) weak base 5.
sentence2: If a substance has a ph value greater than 7,that indicates that it is base.
question: If a substance has a ph value greater than 7, what does it indicate?