<prompt> Create a grammar for the phrase a milkshake.  <response>: A grammar for the phrase a milkshake would be:- Article Noun- A milkshakeHere, a is an indefinite article, which means it refers to a non-specific noun, in this case milkshake. The noun milkshake is a singular countable noun, referring to a cold drink made by blending milk, ice cream, and flavorings. The phrase a milkshake refers to a single, non-specific milkshake. 