Complex sentence: Billy then applies for an internship at Google for the two of them, and they are accepted due to their unorthodox interview answers, despite a lack of relevant experience; they are the only interns not of traditional collegiate age.
Split into simpler sentences: Billy then applies for an internship at Google for the two of them, and they are accepted due to their unorthodox interview answers, despite a lack of relevant experience. They are the only interns not of traditional collegiate age.