Complex sentence: In the early part of his three year-old season he broke his maiden race and then trainer D. Wayne Lukas decided that they would take him down to Oaklawn Park Race Course and put him on the Arkansas track up through the Triple Crown trail.
Split into simpler sentences: In the early part of his three-year-old season, he broke his maiden. Trainer D. Wayne Lukas then decided to take him to Oaklawn Park Race Course and put him on the Arkansas track through the Triple Crown trail.