Relative clauses usually involve the movement of an operator, either overt (wh-operator) or covert (silent operator)
The person who1 t1 killed Mary has been caught. The dog Op1 that the cat clawed t1 is injured.
but the clauses below do not have any traces, which should mean that there is no movement of any operator:
The fact that he is a murderer disgusts me. The rumour that he was a murderer was spread all over the media. The finding that objects fall because of gravity shook the world.
Are the clausal complements of the nouns above relative clauses or appositives like in the sentences below?
John, the man who was caught, was sentenced to life imprisonment. My sister, the judge who sentenced him, is responsible for it.