Complex sentence: In 1981, it lost its sixth form and became a 13-16 school, and, in 1992 merged with nearby Cathedral Middle School and the newly formed school re-located into Cathedral Middle's buildings on Thornes Road.
Split into simpler sentences: In 1981, it lost its sixth form and became a 13-16 school and, in 1992, merged with nearby Cathedral Middle School. The newly formed school re-located into Cathedral Middle's buildings on Thornes Road.