Dr. Ronald Shaw, HER COLLEAGUE, concurs with the theory of a black hole at the galactic center of the milky way. The appositive phrase in this sentence is "her colleague" and this refers to the noun "Dr. Ronald Shaw". An appositive phrase consists of words that serves as an additional information about the noun it describes. Usually, appositive phrases are enclosed with a pair of commas.
Using words to communicate with another person
What i do is i get up at 6:00 in the morning and go strait to the bathroom i usuially take 15 or 20 minutes getting ready, then pack your lunch and finish your homework (if u didnt finish it) then just eat some breakfat and simply leave for school.
hope i helped!