Complex sentence: This station opened in late June 1990 as part of the Orange Line's (then called the East Line) bayside extension and remained open while undergoing renovations as part of the Trolley Renewal Project.
Split into simpler sentences: This station opened in late June 1990 as part of the Orange Line's (then called the East Line) Bayside Extension. It remained open while undergoing renovations as part of the Trolley Renewal Project.