The elliptical amphitheater's 22,000 seats sell out months in advance for summertime open-air productions of Aida. 
Barely anyone goes to the amphitheater to see Aida in the summer.
mnli hypothesis: Barely anyone goes to the amphitheater to see Aida in the summer. premise: The elliptical amphitheater's 22,000 seats sell out months in advance for summertime open-air productions of Aida. 