Complex sentence: Serial Joe was a Canadian band out of Newmarket, Ontario, which consisted of high-school students Ryan Dennis (vocals, guitar), Ryan Stever (guitar), John Davidson (bass guitar) and Dan Stadnicki (drums).
Split into simpler sentences: Serial Joe was a Canadian band out of Newmarket, Ontario. They consisted of highschool students Ryan Dennis (vocals, Guitar), Ryan Stever (Guitar), John Davidson (Bass) and Dan Stadnicki (Drums).