However isnt there an additional rule where comma becomes unnecessary to combine the person's job and that person's name? e.g. " a prominent physicist issac newton died at 1727"
Yes because in that case the appositive is "Isaac Newton" and it's essential to the sentence. Therefore, we put no commas around it (this is the two-or-none rule in action). The prominent physicist Isaac Newton died in 1727. (CORRECT) The prominent physicist, Isaac Newton, died in 1727. (INCORRECT)
Well an appositive can never be a complete, independent sentence, so yes, they are typically just phrases (and nearly always surrounded by two commas/dashes).
Hello Teacher! I have a small question. does this make sense? Restaurant owner, David went to eat dinner. So in this case we need only one comma? or is it wrong because in this case it is only a noun phrase.
Oh Sir then what’s the difference between this situation and 3:49 in the video(A hunting dog bred to track rabbits, the beagle can be a stubborn hound.)
If the opening appositive is long, a comma should be used. If it's a word or two (such as a title or short description, such as this case), no comma is warranted. The tests are not likely to test this difference, so as long as you know the basic appositive rules, you should be good.
