Hundreds of sea gulls scavenge for food as bulldozers bury rubbish at the now-closed Wake County Landfill in North Raleigh in this file photo. A study by Duke University researchers concludes that gulls feeding on trash can be a significant course of nitrogen and phosphorus at nearby lakes. TRAVIS LONG TRAVIS LONG
Sea gulls eat trasth they find by the beach 
( z1 eat :ARG0 ( z2 gull :mod ( z3 sea ) ) :ARG1 ( z4 trasth :ARG1-of ( z5 find :ARG0 z2 :location ( z6 beach ) ) ) )