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
Nitrogen is can be nearby if gulls are feeding on trash
( z1 possible :ARG1 ( z2 near :ARG1 ( z3 nitrogen ) ) :condition ( z4 feed :ARG0 ( z5 gull ) :ARG1 ( z6 trash ) ) )