An instruction includes a prerequisite and a sequence

A fictional written procedure states: before the scheduled inspection, the authorized supervisor confirms that the required isolation has been completed and verified under the site procedure. Only then does the designated competent person begin the inspection. The passage supplies no alternative live-work route and says nothing about returning the equipment to production. A learner concludes that anyone may start if the control display says stopped. Another limits the answer to the actual stated prerequisite and assigned roles. This written reading exercise operates no equipment and does not prescribe an isolation method. It asks which conclusion the passage supports, why an ordinary stop indication is insufficient under the text and what later actions remain unspecified.