Instructors may receive training.Logical formLearned from4 sentences. An instructor may certify that something-is-the-case.Logical formLearned from4 sentences. A responsibility may rest with an instructor.Logical formLearned from4 sentences. Classes may pertain-to an instructor.Logical formLearned from4 sentences. An instructor can be on a sailboat.Logical formLearned from4 sentences. A time can be convenient to an instructor.Logical formLearned from4 sentences. Instructors can be at a school.Logical formLearned from4 sentences. A male can be (classroom instructor).Logical formLearned from4 sentences. A person may notify instructors.Logical formLearned from4 sentences. Instructor may pertain-to a department.Logical formLearned from4 sentences. A (dive instructor) can be certified.Logical formLearned from4 sentences. Preferences may pertain-to an instructor.Logical formLearned from4 sentences. Materials may be provided by an instructor.Logical formLearned from4 sentences. Instructors may assume that something-is-the-case.Logical formLearned from4 sentences. Advance can be with an instructor.Logical formLearned from4 sentences.