What is in the box?

What items are in the case, must be resolved in this puzzle.

Imagine...
You have a suitcase and unfortunately can not open the lock. You now want to know what is in the suitcase. You can find a small blade on it what is located in the trunk on the case:

In the case is at least a subject
If you have packed a pair of trousers and a sweater, then you have at least the socks
If a scarf in the case is also a pair of shoes is located in the luggage
Either both a sweater and socks or a hat and an umbrella is packed
4 items are already in the suitcase, then the suitcase includes a scarf
Pants could never be at the same time the socks in the case, since pants would otherwise also stink
If a sweater in the luggage, probably also a cap it must be
More than 6 items do not fit into the case in
If 2 caps in it, then are also shoes
The screen does not fit into the case, because he is too big
When the trousers in the suitcase, then is also a scarf while

What is in the box?
Pants
Sweater
Socks
Shoe
Cap
Scarf
Screen

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