Complex sentence: The memorial garden dedicated to the four students killed in the kayaking accident in 1993 was expanded in 2008, in response to the death of a pupil from Southway Primary School who was killed in a gas explosion.
Split into simpler sentences: The memorial garden dedicated to the four students killed in a kayaking accident in 1993 was expanded in 2008. This was in response to the death of a pupil from Southway Primary School who was killed in a gas explosion.