Nan desu ka?

Nan desu ka? What is it?

enpitsu pencil
kii key
pen pen
hako box
hon book
kami paper

Sore wa enpitsu desu ka? Is that the pencil?
Hai, sore wa enpitsu desu. Yes, that is the pencil.

Sore wa kii desu ka? Is that the key?
Iie, sore wa kii dewa arimasen, sore wa enpitsu desu. No, that is not the key, that is the pencil.

Isu chair
Tëburu table
ranpu lamp
doa door
mado window
e picture
furoā floor
tenjō ceiling
kabe wall

Sore wa isu to tëburu ranpu desu.
That is the chair, table and lamp.

Note: to=and note the placement after the first object, as oppose to before the last object.