Teacher:In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Teacher: Now, understand the problem? Solve this instance: A chancellor is a leader of a university or a college .
Student:
A chancellor is a leader of a college or university , usually either the executive or ceremonial head of the university or of a university campus within a university system .