Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE Courses (subject_id VARCHAR); CREATE TABLE Subjects (subject_name VARCHAR, subject_id VARCHAR)
### Question:
Find the subject ID, subject name, and the corresponding number of available courses for each subject.
### Answer:
SELECT T1.subject_id, T2.subject_name, COUNT(*) FROM Courses AS T1 JOIN Subjects AS T2 ON T1.subject_id = T2.subject_id GROUP BY T1.subject_id