An instructor can be for a duration of a course.Logical formLearned from3 sentences. Some instructors can be in a field.Logical formLearned from3 sentences. Prerequisites may be established by an instructor.Logical formLearned from3 sentences. Others can be with consent of an instructor.Logical formLearned from3 sentences. Blackboard can be available for some instructors.Logical formLearned from3 sentences. Instructors may pertain-to students.Logical formLearned from3 sentences. Instructors may use an anthology of literature.Logical formLearned from3 sentences. (Enrollment approval) can be from a (director or instructor).Logical formLearned from3 sentences. Others can be (group fitness instructors).Logical formLearned from3 sentences. (Group fitness instructors) may work on a (contract basis).Logical formLearned from3 sentences. (Group exercise instructors) can be responsible for ensurring that something-is-the-case.Logical formLearned from3 sentences. Some instructors may work with students.Logical formLearned from3 sentences. Instructors may fill a role.Logical formLearned from3 sentences. An instructor may make an announcement to a class.Logical formLearned from3 sentences. An instructor can be responsible for developping.Logical formLearned from3 sentences.