A grammar question from one-simple-question

Question

We use "be made of" when we talk about wine.

Then can you analyze this sentence?

Wine is made of grapes.

What I mean analyze is like

I /am/ a student Subject/Verb/Complement

Have a good day!

P.S. I am a Korean student, so my question itself may have gramatical problems... hope you'll just understand my meaning :)

I suppose you could say it's S-P-C (P=predicator, i.e. the verb). But bear in mind that "made of grapes" is a subordinate clause functioning as complement of "is", so the 'real' analysis is more complicated. — BillJ, Feb 15 '19 at 9:34
Your question is unclear. Please try to edit it. What do you want as a result of analysis? — Alex Kuchin, Feb 15 '19 at 9:37

Astralbee · Accepted Answer · 2019-02-15 13:48:14Z

I'm not completely sure I understand your question but I will try and explain the difference between the two statements you are likening.

Wine is made of grapes.

John is a student.

These are not the same. The first is stating an attribute of wine (that it is made of grapes); the second is stating something that John is.

You cannot compare the structure of these sentences as they are different. To compare them properly, consider:

John is made of atoms.

Wine is a drink.

These have the same structure as your original examples because now we are stating an attribute of the person and stating what wine is.

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