The hollow barking is used to mean that the barking was muffled whereas howling suggests the barking was composed of lengthy sustained sounds, loud and audible.
Context: "The loud howling of a dog came from one of the stone sheds , but there was no sign of life around the buildings ." Claim: "The hollow barking of a dog came from one of the stone sheds , but there was no sign of life around the buildings ."
Considering the context, is the claim true, false, or unknown?