A conclusion to be made based on presented facts or information : a main point or key message to be learned or understood from something experienced or observed
I think that what you are asking is which word is a subject complement in that sentence. What I think the answer to this question is the word third.
Did we mention he’s 13 years old?
?
Answer:
.................................. hkkytfdgjuyffghj
<span>banjos:)
hope that it will be useful</span>