Looking can also be translated ser
Is it an enormous worm?
Occasionally, I check the indefinite article to make sure I have it right, and this one said "a worm" was translated as just "orm", and so I deleted "en" and got it wrong. Slightly annoying.
The same thing happened to me. I remember a prior discussion about this and it was stated that no article should be used. Someone said that it was the same in German. Very confusing!!!