er diagram into a relational database schema

Hello I need someone to Convert the following ER diagram into a relational database schema. and answer the following questions,

1.Find names of all students who take at least two courses taught by Peterson but take only one course from Davidson.

2. Find S_IDs of the students who take all courses taught by Davidson.

3. Find all instructors (C_InstNames) who currently teach at least three courses.

The ER diagram is uploaded to the attached files.

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