Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Context: Athabasca Valles is an outflow channel on Mars, cut into its surface by catastrophic flooding. 
 Question: The astronomical body that Athabasca Valles was located on was what?
mars

Context: The Caretaker Cabinet of Panagiotis Pikrammenos was sworn in on May 17, 2012 when an inconclusive election on May 6, 2012 resulted in a hung parliament. 
 Question: What year did Caretaker Cabinet of Panagiotis Pikrammenos end?
2012

Context: HLA-C belongs to the MHC (human = HLA) class I heavy chain receptors. 
 Question: Which species has the HLA-C gene?

human