Input: Relying on an animal to come by is risky. A flower may have to wait a long time for the right animals to come by. What if one never passes close enough to the flower? Hoping the wind will blow is also risky for a plant. What if the wind does not blow? What if the blowing pollen does not land on another flower? The wind could even blow the pollen over the ocean where it is wasted. Giving free nectar is costly. It is not a good use of the plants energy. A plant uses a lot of energy to produce nectar. Some animals may just drink the nectar. They may not carry off any pollen in return. To improve their chances, plants evolved special traits. For example, they developed ways to hide their nectar. Only certain animals were able to get at the plants hidden nectar. These specific animals might be more likely to visit only flowers of the same species. This was also a benefit for some animals. Animals also evolved special traits to get to the nectar.
"Why is giving free nectar costly?" is "A plant uses a lot of energy to produce nectar"?
Output: yes
Input: The Creed family moves into a new home , close to a road where truckers often drive unsafely . They befriend their neighbor , Jud Crandall , who tells them about a nearby pet cemetery which was built on Indian burial grounds and is rumored to be haunted . Later , Louis Creed , working at the University of Maine at Orono health center , treats Victor Pascow , who has been hit by a truck and incurred massive head injuries . Pascow dies after grabbing Louis , addressing him by name , and uttering a cryptic message . He also promises to '' come to '' him . That night , in what is seemingly a dream , Victor visits Louis , warning him about the burial ground beyond the pet cemetery . Louis wakes up to find his feet covered in dirt . Church , a cat owned by Louis ' daughter Ellie , is killed by a truck on the road in front of their house while Rachel , Ellie and Gage are in Chicago . Jud takes Louis to an ancient Micmac Indian burial ground beyond the pet cemetery they visited earlier and buries the cat . Church is brought back to life , but is an evil shell of himself . He attacks Louis and reeks of decomposition . Louis asks if a person was ever buried in the grounds . Jud replies , '' Christ on His throne , no. . And whoever would? '' Sometime later , Louis ' young son Gage is killed by a truck on the same road . Louis considers burying Gage in the burial grounds . Jud tries to dissuade him from doing so , telling him about a young man from town , Timmy Baterman , who died in service during World War II .
"What happens to Ellie's cat after its killed and buried?" is "It's brought back to life"?
Output: yes
Input: According to the radar reconstruction, American 77 reemerged as a primary target on Indianapolis Center radar scopes at 9:05, east of its last known position. The target remained in Indianapolis Center's airspace for another six minutes, then crossed into the western portion of Washington Center's airspace at 9:10. As Indianapolis Center continued searching for the aircraft, two managers and the controller responsible for American 77 looked to the west and southwest along the flight's projected path, not east-where the aircraft was now heading. Managers did not instruct other controllers at Indianapolis Center to turn on their primary radar coverage to join in the search for American 77. In sum, Indianapolis Center never saw Flight 77 turn around. By the time it reappeared in primary radar coverage, controllers had either stopped looking for the aircraft because they thought it had crashed or were looking toward the west. Although the Command Center learned Flight 77 was missing, neither it nor FAA headquarters issued an all points bulletin to surrounding centers to search for primary radar targets. American 77 traveled undetected for 36 minutes on a course heading due east for Washington, D.C. By 9:25, FAA's Herndon Command Center and FAA headquarters knew two aircraft had crashed into the World Trade Center. They knew American 77 was lost. At least some FAA officials in Boston Center and the New England Region knew that a hijacker on board American 11 had said "we have some planes." Concerns over the safety of other aircraft began to mount. A manager at the Herndon Command Center asked FAA headquarters if they wanted to order a "nationwide ground stop." While this was being discussed by executives at FAA headquarters, the Command Center ordered one at 9:25. The Command Center kept looking for American 77. At 9:21, it advised the Dulles terminal control facility, and Dulles urged its controllers to look for primary targets. At 9:32, they found one. Several of the Dulles controllers "observed a primary radar target tracking eastbound at a high rate of speed" and notified Reagan National Airport. FAA personnel at both Reagan National and Dulles airports notified the Secret Service.
"What target crossed into Washington Center's airspace at 9:10?" is "Airplane"?
Output:
yes