Complex sentence: Majestic Prince (1966-April 22,1981) was a Thoroughbred racehorse purchased by Calgary, Alberta, oilman Frank McMahon at the Keeneland yearling sale in September 1967 for a then-record price of $250,000.
Split into simpler sentences: Majestic Prince (1966-April 22,1981) was a Thoroughbred racehorse. In September 1967 Majestic Prinec was purchased by Calgary, Alberta, oilman Frank McMahon at the Keeneland yearling sale for a then-record price of $250,000.