Complex sentence: In the late 1960's a teenager from Truro, Roger Taylor, visited the city with friends Brian May and Freddie Mercury and in 1970 the rock band Queen played their first ever concert in Truro City Hall.
Split into simpler sentences: In the late 1960's a teenager from Truro, Roger Taylor, visited the city with friends Brian May and Freddie Mercury. In 1970 the rock band Queen played their first ever concert in Truro City Hall.