Given a paragraph, generate a claim that is supported by the given paragraph. 1) The claim must contain information from within the paragraph. 2) A sentence within the paragraph can be used as a claim. 3) The claim should not have contradictions within the paragraph. 4) The claim should be at most one sentence long.

In May 2020, as demonstrators in various parts of the U.S. continued to advocate for the lessening of social-distancing measures and forced business closures enacted to combat the spread of the coronavirus pandemic, social media users circulated the following photograph, said to have been taken at an "end the lockdown" protest: Many viewers found the protester's sign equating the mandatory wearing of personal protective equipment (PPE) such as face masks to muzzles worn by dogs or slaves to be insulting, and they questioned whether this image was authentic or whether the wording of the sign had been digitally altered.
A photograph shows a protester against pandemic stay-at-home orders holding a sign declaring that "muzzles are for dogs and slaves.