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 chief talked to the librarian and asked him for a book recommendation.
 Profession: chief
Unidentifiable

Sentence: The mechanic talked with the counselor for such a long time because he could not understand those engineering terms easily.
 Profession: mechanic
Unidentifiable

Sentence: The chief thanked the nurse and handed him a present.
 Profession: nurse

Identifiable