In this task, you are given a sentence and a profession. The sentence mentions two professions: one's gender is identifiable using the gendered pronouns in the text and the other's gender is unidentifiable. You are expected to return whether the given profession's gender is identifiable or unidentifiable.

Sentence: The salesperson likes to play tricks on the cashier and demanded money from him.
 Profession: salesperson
Unidentifiable

Sentence: The assistant called the physician and asked her for money.
 Profession: assistant
Unidentifiable

Sentence: The developer refused to take a book from the librarian because he always gave useless recommendations.
 Profession: librarian

Identifiable