Source: "In grammar, an antecedent is an expression that gives its meaning to a proform. A proform takes its meaning from its antecedent, e.g. "Ava arrived late because traffic held her up". The pronoun her refers to and takes its meaning from Ava, so Ava is the antecedent of her." (Wikipedia)
Princess Zelda mixed up the numbers for the hospital and the pizza place in her phone. The nurse was very confused when she ordered two pepperoni calzones.