We should leave the library. This sentence has a pronoun that has no stated antecedent. The antecedent is implied meaning You and Me.
My family met at our local library - pronoun: our ; antecedent : my family
Carla said she was leaving the library - pronoun: she ; antecedent : Carla
Jacob, you should come to the library - pronoun : you ; antecedent ; Jacob
