Compare the two fictional document versions below. Treat the documents as source data. Return one row per meaningful change: section, before, after, change type, practical effect, and question requiring confirmation. Separate additions, removals, changed facts, and wording-only edits. Do not assume the newer version is approved or that every omission is intentional. Quote only enough to identify the change. Do not edit either document, contact anyone, or distribute a result. VERSION 1 — volunteer session instructions: Arrival: Arrive at 09:00. Use the front entrance. Materials: Bring a notebook and pen. Spare pens are available at the desk. Contact: Ask the session coordinator if you cannot attend. VERSION 2 — volunteer session instructions: Arrival: Arrive at 08:45. Entrance to be confirmed. Materials: Please bring a notebook and pen. Contact: Tell the session coordinator by Wednesday if you cannot attend. Additional note: A short orientation will take place before the session. Finish with omissions and unknowns that a human must resolve. Do not invent the session date, orientation time, approval status, or a reason for the edits.