Someone argues: “Because sick people are exempt, travellers must also be exempt.” That does not follow. One proven specification does not automatically establish another. A travel exemption might be supported by independent evidence, but that evidence must be produced.
Before applying the remaining rule, one must also confirm the actual scope of “registered” and any separate temporal or procedural conditions. Scope of wording and conditions of implementation are distinct inquiries.
The justified conclusion must not be extended beyond what the supporting proof establishes.