Complex sentence: He studied at St. Francis Assisi School and later he went to John Almond Secondary Modern School and for two years Stevens was sent to board at Blackrock College, set in 56 acres overlooking Dublin Bay and run by the Holy Ghost Fathers.
Split into simpler sentences: He studied at St. Francis Assisi School and later he went to John Almond Secondary Modern School. It did and for two years Stevens was packed off to board at Blackrock College, set in 56 acres overlooking Dublin Bay and run by the Holy Ghost Fathers.