How do I describe artifact
(Please put it in your own words)

An artefact is an ornament, tool, or other object that is made by a human being, especially one that is historically or culturally interesting.

any object made by human beings, especially with a view to subsequent use. a handmade object, as a tool, or the remains of one, as a shard of pottery, characteristic of an earlier time

i'm thinking it would be when compound subjects are joined by or, nor,either-or, neither-nor.

i do not see anyy sentence you are asking for me to read