Hello,
I noticed that oler seems to be sometimes built with the preposition "a" before introducing the smell of something, such as in:
Tú hueles a perfume fresco.
or
Las galletas huelen a chocolate.
So I thought it was used in the meaning of "smelling like something", when the subject themselves smells like something. But then I also noticed it in ¿Vosotros oléis a pollo quemado?".
So is the "a" used rather when the smell has no article? What is the rule (if any)?
Thank you!
