Input: Read this: The Mantoux tuberculin skin test is often used to screen people at high risk for TB. Those who have been previously immunized may have a false-positive test result. The test may be falsely negative in those with sarcoidosis, Hodgkin's lymphoma, malnutrition, and most notably, active tuberculosis. Interferon gamma release assays (IGRAs), on a blood sample, are recommended in those who are positive to the Mantoux test. These are not affected by immunization or most environmental mycobacteria, so they generate fewer false-positive results. However, they are affected by M. szulgai, M. marinum, and M. kansasii. IGRAs may increase sensitivity when used in addition to the skin test, but may be less sensitive than the skin test when used alone.
Question: What liquid would you need from a patient to perform IGRAs?

Output: blood

Input: Read this: Prior to the 12th century, women accounted for less than one percent of the world's Islamic scholars. However, al-Sakhawi and Mohammad Akram Nadwi have since found evidence of over 8,000 female scholars since the 15th century. al-Sakhawi devotes an entire volume of his 12-volume biographical dictionary al-Daw al-lami to female scholars, giving information on 1,075 of them. More recently, the scholar Mohammad Akram Nadwi, currently a researcher from the Oxford Centre for Islamic Studies, has written 40 volumes on the muhaddithat (the women scholars of hadith), and found at least 8,000 of them.
Question: How many female Islamic scholars were on record after the 1600s?

Output: unanswerable

Input: Read this: Roman beliefs about an afterlife varied, and are known mostly for the educated elite who expressed their views in terms of their chosen philosophy. The traditional care of the dead, however, and the perpetuation after death of their status in life were part of the most archaic practices of Roman religion. Ancient votive deposits to the noble dead of Latium and Rome suggest elaborate and costly funeral offerings and banquets in the company of the deceased, an expectation of afterlife and their association with the gods. As Roman society developed, its Republican nobility tended to invest less in spectacular funerals and extravagant housing for their dead, and more on monumental endowments to the community, such as the donation of a temple or public building whose donor was commemorated by his statue and inscribed name. Persons of low or negligible status might receive simple burial, with such grave goods as relatives could afford.
Question: From what source does information of Roman thought about the afterlife come?

Output: educated elite

Input: Read this: In 2013 and 2014, a Russian/Ukrainian hacking ring known as "Rescator" broke into Target Corporation computers in 2013, stealing roughly 40 million credit cards, and then Home Depot computers in 2014, stealing between 53 and 56 million credit card numbers. Warnings were delivered at both corporations, but ignored; physical security breaches using self checkout machines are believed to have played a large role. "The malware utilized is absolutely unsophisticated and uninteresting," says Jim Walter, director of threat intelligence operations at security technology company McAfee meaning that the heists could have easily been stopped by existing antivirus software had administrators responded to the warnings. The size of the thefts has resulted in major attention from state and Federal United States authorities and the investigation is ongoing.
Question: What was stolen from McAfee?

Output:
unanswerable