Definition: In this task, you will use your knowledge about language (and common sense) to determine what element the marked number refers to. The numbers are marked with two underlines around them, like: _ number _. Your answer should be chosen from the given text, and should not contain other words.
Input: Dr. Spencer Reid:  You know , San Diego 's essentially one big college town , with an enrollment at SDCU of approximately 65000 students .
Ashley Seaver: San Diego County has nine universities , _ five _ private , four public . We add seven more if we 're including trade schools .

universities