Complex sentence: On 7 July 1984 the band played a benefit show at Aberdare, Wales for striking miners, and on the return trip guitarist N. A. Palmer announced that he intended to leave the group.
Split into simpler sentences: On 7 July 1984 the band played a gig at Aberdare in Wales, a benefit for striking miners. On the return journey guitarist N. A. Palmer announced that he intended to leave the group.