Breastfeeding<br>We had an outdoor luncheon today. Our building sponsored the event. A lot of young women brought their children. One mother breastfed her baby publicly. As this is Cambridge, MA, nobody minded at all.
The luncheon was sponsored by the writer's building.
The person who wrote this said that their building sponsored the event, and the event was the luncheon. Using the word "writer's" may have made it difficult for the system.
( z1 sponsor :ARG0 ( z2 building :poss ( z3 person :ARG0-of ( z4 write ) ) ) :ARG1 ( z5 luncheon ) )