I am pretty sure you are correct
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.
My idea of the church is that they help those people who are in need and needs nothing in return if they have done a deed so great. That the church would always follow the example of Jesus Christ, his teachings, his understanding and above all, his love for mankind.
