There is a lamp (a)   the sofa.

There is a cat (a)   the chair.

The fireplace is (a)   the armchair.

There is a ball (a)   to the vase.

There are two pictures (a)   the wall.

The sofa is (a)   the fireplace.

The apple is (a)   the floor.

There is a flower (a)   the vase.

There is a robot (a)   the table and the chair.