Complex sentence: These images were later accompanied by three music videos subtitled "Chapter 0.5 Before AL1" and one video, "Change Up", which served as a preface for the group's second full album "Teen, Age", to be released on November 6.
Split into simpler sentences: These images were later accompanied by three music videos subtitled "Chapter 0.5 Before AL1". The group's second full album "Teen, Age" is to be released on November 6.