Complex sentence: Quarff Primary School, Shetland, was a school that existed from 1879 until it was closed in 2003, due to a lack of interest in the position of headmaster.
Split into simpler sentences: Quarff Primary School, Shetland, was a primary school that existed from 1879 to 2003. The school provided primary education for over 120 years, but was closed in 2003 due to a lack of interest in the position of headmaster.