In this task you are given a disfluent question, a proper question and a context. A disfluent question is a question that has some interruptions in it while framing and a proper question is the correct form of the question without any disfluency. Classify whether the question is answerable or not based on the given context.

[Q]: proper question: What vitamin do T-cells have a parasitic relationship with? 
 disfluent question: What vitamin do T-cells have a receptor neigh a parasitic relationship with? 
 context: When a T-cell encounters a foreign pathogen, it extends a vitamin D receptor. This is essentially a signaling device that allows the T-cell to bind to the active form of vitamin D, the steroid hormone calcitriol. T-cells have a symbiotic relationship with vitamin D. Not only does the T-cell extend a vitamin D receptor, in essence asking to bind to the steroid hormone version of vitamin D, calcitriol, but the T-cell expresses the gene CYP27B1, which is the gene responsible for converting the pre-hormone version of vitamin D, calcidiol into the steroid hormone version, calcitriol. Only after binding to calcitriol can T-cells perform their intended function. Other immune system cells that are known to express CYP27B1 and thus activate vitamin D calcidiol, are dendritic cells, keratinocytes and macrophages.
[A]: No


[Q]: proper question: In what year was the D'Angelo and Rika Library built? 
 disfluent question: Which University or in what year was the D'Angelo and Rika Library built? 
 context: The University of Chicago Library system encompasses six libraries that contain a total of 9.8 million volumes, the 11th most among library systems in the United States. The university's main library is the Regenstein Library, which contains one of the largest collections of print volumes in the United States. The Joe and Rika Mansueto Library, built in 2011, houses a large study space and an automatic book storage and retrieval system. The John Crerar Library contains more than 1.3 million volumes in the biological, medical and physical sciences and collections in general science and the philosophy and history of science, medicine, and technology. The university also operates a number of special libraries, including the D'Angelo Law Library, the Social Service Administration Library, and the Eckhart Library for mathematics and computer science, which closed temporarily for renovation on July 8, 2013. Harper Memorial Library no longer contains any volumes; however it is, in addition to the Regenstein Library, a 24-hour study space on campus.
[A]: No


[Q]: proper question: What is the last line of defense against infection? 
 disfluent question: What is an example of a chemical barrier no scratch that and tell me what is the last line of defense against infection? 
 context: Several barriers protect organisms from infection, including mechanical, chemical, and biological barriers. The waxy cuticle of many leaves, the exoskeleton of insects, the shells and membranes of externally deposited eggs, and skin are examples of mechanical barriers that are the first line of defense against infection. However, as organisms cannot be completely sealed from their environments, other systems act to protect body openings such as the lungs, intestines, and the genitourinary tract. In the lungs, coughing and sneezing mechanically eject pathogens and other irritants from the respiratory tract. The flushing action of tears and urine also mechanically expels pathogens, while mucus secreted by the respiratory and gastrointestinal tract serves to trap and entangle microorganisms.
[A]:
No