Sentence 1: Anita was at a music festival downtown. 
 Sentence 3: The bathrooms in the bar were for paying customers only 
 Sentence 4:  The bars were cleaner than the porta potties 
 Sentence 5:  Anita bought a beer to use the bar's bathroom 
 Option 1: She needed to use the restroom. 
 Option 2: She needed to use the porta potty.