Input: Read this: Diagnosing active tuberculosis based only on signs and symptoms is difficult, as is diagnosing the disease in those who are immunosuppressed. A diagnosis of TB should, however, be considered in those with signs of lung disease or constitutional symptoms lasting longer than two weeks. A chest X-ray and multiple sputum cultures for acid-fast bacilli are typically part of the initial evaluation. Interferon-γ release assays and tuberculin skin tests are of little use in the developing world. IGRA have similar limitations in those with HIV.
Question: What kind of cultures test for HIV?

Output: unanswerable


Input: Read this: Egypt has one of the longest histories of any modern country, arising in the tenth millennium BC as one of the world's first nation states. Considered a cradle of civilisation, Ancient Egypt experienced some of the earliest developments of writing, agriculture, urbanisation, organised religion and central government. Iconic monuments such as the Giza Necropolis and its Great Sphinx, as well the ruins of Memphis, Thebes, Karnak, and the Valley of the Kings, reflect this legacy and remain a significant focus of archaeological study and popular interest worldwide. Egypt's rich cultural heritage is an integral part of its national identity, having endured, and at times assimilated, various foreign influences, including Greek, Persian, Roman, Arab, Ottoman, and European. Although Christianised in the first century of the Common Era, it was subsequently Islamised due to the Islamic conquests of the seventh century.
Question: In what century were islamic conquests of Egypt?

Output: seventh century


Input: Read this: Catalan sociolinguistics studies the situation of Catalan in the world and the different varieties that this language presents. It is a subdiscipline of Catalan philology and other affine studies and has as an objective to analyse the relation between the Catalan language, the speakers and the close reality (including the one of other languages in contact).
Question: What field studies the placement of Catalan in the world?

Output: Catalan sociolinguistics


Input: Read this: Subsequently, it became one of Britain's most significant honours to be buried or commemorated in the abbey. The practice of burying national figures in the abbey began under Oliver Cromwell with the burial of Admiral Robert Blake in 1657. The practice spread to include generals, admirals, politicians, doctors and scientists such as Isaac Newton, buried on 4 April 1727, and Charles Darwin, buried 26 April 1882. Another was William Wilberforce who led the movement to abolish slavery in the United Kingdom and the Plantations, buried on 3 August 1833. Wilberforce was buried in the north transept, close to his friend, the former Prime Minister, William Pitt.[citation needed]
Question: Who was buried under to William Wilberforce?

Output:
unanswerable