In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Ex Input:
What determines the model of forces?, Context: For certain physical scenarios, it is impossible to model forces as being due to gradient of potentials. This is often due to macrophysical considerations that yield forces as arising from a macroscopic statistical average of microstates. For example, friction is caused by the gradients of numerous electrostatic potentials between the atoms, but manifests as a force model that is independent of any macroscale position vector. Nonconservative forces other than friction include other contact forces, tension, compression, and drag. However, for any sufficiently detailed description, all these forces are the results of conservative ones since each of these macroscopic forces are the net results of the gradients of microscopic potentials.

Ex Output:
gradient of potentials

Ex Input:
Which is not a name for the county: Hampshire, County Council, or Hantscire?, Context: After the establishment of Hampshire County Council, following the act in 1888, Southampton became a county borough within the county of Hampshire, which meant that it had many features of a county, but governance was now shared between the Corporation in Southampton and the new county council. There is a great source of confusion in the fact that the ancient shire county, along with its associated assizes, was known as the County of Southampton or Southamptonshire. This was officially changed to Hampshire in 1959 although the county had been commonly known as Hampshire or Hantscire for centuries. Southampton became a non-metropolitan district in 1974.

Ex Output:
County Council

Ex Input:
Which are there expected to be more of serving in 2020, rangers or supplementary personnel?, Context: The Armed Forces are today funded by approximately $20.1 billion annually and are presently ranked 74th in size compared to the world's other armed forces by number of total personnel, and 58th in terms of active personnel, standing at a strength of roughly 68,000, plus 27,000 reservists, 5000 Rangers, and 19,000 supplementary reserves, bringing the total force to approximately 119,000. The number of primary reserve personnel is expected to go up to 30,000 by 2020, and the number of active to at least 70,000. In addition, 5000 rangers and 19,000 supplementary personnel will be serving. If this happens the total strength would be around 124,000. These individuals serve on numerous CF bases located in all regions of the country, and are governed by the Queen's Regulations and Orders and the National Defence Act.

Ex Output:
supplementary personnel