[Grammar] “in which,to which” are these subordinate conjunctions?

[Nanu1]

1.This is the bag in which I put my sandwich.
2.I shall return the money to the person to which it belongs.

"to which it belongs" and "in which I put my sandwich" are these subordinate/dependent clauses? and "in which,to which" are these subordinate conjunctions?

 

[tzfujimino]

Did you construct those sentences?

 

[Nanu1]

These sentences simply do not work.

Perhaps you mean something like:


I shall return to the home/house that belongs to me.
I shall return to the house in which he lives.

Please could you look at question once I have already edited.