original question: What is the number of exhibitions produced by [British Library]?
answer: 6
answer type: Exhibition.
auxiliary information: The British Library is the national library of the United Kingdom and the largest library in the world by number of items catalogued. A Grade I listed building, the library is a major research library, holding around 170 million items from many countries, in many languages and in many formats, both print and digital: books, manuscripts, journals, newspapers, magazines, sound and music recordings, videos, play-scripts, patents, databases, maps, stamps, prints, drawings. The Library's collections include around 14 million books, along with substantial holdings of manuscripts and historical items dating back as far as 2000 BC. As a legal deposit library, the British Library receives copies of all books produced in the United Kingdom and Ireland, including a significant proportion of overseas titles distributed in the UK. It also has a programme for content acquisitions. The British Library adds some three million items every year occupying 9.6 kilometres of new shelf space. The library is a non-departmental public body sponsored by the Department for Culture, Media and Sport.
What is the total number of exhibitions produced by the [British Library]?