In this task, you will be presented with a context passage, a question about that paragraph, and a possible answer to that question. The task is to check the validity of the answer. Answer with "Yes" or "No".

Ex Input:
After more than a year of effort, attorneys with Northwest Justice Project earlier this week told 25 families in a mobile home park here that they can keep their homes and no longer need to fear eviction. The East Wenatchee City Council has entered into an Interlocal Agreement with the Wenatchee Housing Authority authorizing the Authority to purchase and maintain the Mobile Park Plaza mobile home park. Located just north of the Wenatchee Valley Mall, the park had been threatened with closure for more than a year. "We cannot say enough about how relieved we are that this is over," said Manuel Luna, one of the residents of Mobile Park Plaza. "We were afraid that no solution would be found, and that our families would have no place to go. We are very grateful for the help of our attorneys. Without them, we would not have saved our homes. We are also thankful for the help of the Housing Authority, the City Council and Mayor Steve Lacy." Formerly owned by local businessman Dan Jennings, Mobile Park Plaza had been home to 45 low-income families, many of them Latino farm workers. In October 2000 Jennings gave the park residents notice of his intent to close the park effective November 30, 2001. While some park residents decided to move, others, including 25 families, organized an informal association to relocate or save their homes. Unable to afford private legal counsel, the families asked for help from legal services attorneys at the Northwest Justice Project and Columbia Legal Services. In the succeeding months, these attorneys worked with representatives of the Greater Wenatchee Housing Authority, the state Office of Community Development, Chelan County, the City of East Wenatchee, state legislators, Jennings and others to secure funding and find a solution. "There seemed to be a never-ending set of obstacles," said Patrick Pleas, an attorney with Northwest Justice Project. "Mr. Jennings had financial considerations, the City had growth and economic development considerations, and the State and Housing Authority had their own concerns. Thankfully, hard work and good will from all parties allowed us to find a solution that works for everyone." Northwest Justice Project and Columbia Legal Services are non-profit organizations that provide civil legal assistance to low-income individuals and families throughout Washington state. Members of the state's Access to Justice Network, these organizations work with thousands of volunteer attorneys to ensure that justice is available to those who face critical legal problems and can't afford private legal counsel. <sep>Why did some residents of Mobile Park Plaza decide to move?<sep>Because Jennings gave the park residents notice of his intent to close the park

Ex Output:
Yes

Ex Input:
General relativity includes a dynamical spacetime, so it is difficult to see how to identify the conserved energy and momentum. Noether's theorem allows these quantities to be determined from a Lagrangian with translation invariance, but general covariance makes translation invariance into something of a gauge symmetry. The energy and momentum derived within general relativity by Noether's presecriptions do not make a real tensor for this reason. Einstein argued that this is true for fundamental reasons, because the gravitational field could be made to vanish by a choice of coordinates. He maintained that the non-covariant energy momentum pseudotensor was in fact the best description of the energy momentum distribution in a gravitational field. This approach has been echoed by Lev Landau and Evgeny Lifshitz, and others, and has become standard. The use of non-covariant objects like pseudotensors was heavily criticized in 1917 by Erwin Schrodinger and others. <sep>When did the standard approach to energy momentum become criticized?<sep>1911

Ex Output:
Yes

Ex Input:
The dermis is the inner layer of skin. The dermis has blood vessels and nerve endings. The nerve endings explain why your skin is sensitive. You can sense pain, pressure, and temperature. You cut your finger and it starts to bleed. What has happened? If your skin bleeds, it means you have cut the dermis layer and damaged blood vessels. The cut really hurts. It hurts because of the nerve endings in this skin layer. The dermis also contains hair follicles and two types of glands. Hair follicles are structures where hairs originate. Each hair grows out of a follicle. Hair passes up through the epidermis. It then extends above the skin surface. Oil glands produce an oily substance. The oil is secreted into hair follicles. <sep>What is the last structure the hair passes through before extending above the skin surface?<sep>Hair passes up through the epidermis

Ex Output:
Yes