[AmgedIsmail]

Hello,
How can I say "What is oval table?" in Japanese?
Can I say?

takushi wa nan ranen desu ka.
たくしはなんらんえんですか。

Here is what I did...

I used the subject (table) at the beginning and then used "wa".
I then used "what" "nan".
I used the adjective "oval" "ranen" before the verb.

Is that right?