Context: Imperial College Healthcare NHS Trust was formed on 1 October 2007 by the merger of Hammersmith Hospitals NHS Trust (Charing Cross Hospital, Hammersmith Hospital and Queen Charlotte's and Chelsea Hospital) and St Mary's NHS Trust (St. Mary's Hospital and Western Eye Hospital) with Imperial College London Faculty of Medicine. It is an academic health science centre and manages five hospitals: Charing Cross Hospital, Queen Charlotte's and Chelsea Hospital, Hammersmith Hospital, St Mary's Hospital, and Western Eye Hospital. The Trust is currently the largest in the UK and has an annual turnover of £800 million, treating more than a million patients a year.[citation needed]

Question: What was formed on the 1st October 2007?
Answer: Imperial College Healthcare NHS Trust

Question: How many hospitals does it manage?
Answer: five

Question: What is it considered to be?
Answer: an academic health science centre

Question: What is the annual turnover for the trust?
Answer: £800 million

Question: How many patients a year does the trust treat?
Answer: more than a million

Question: what  hospitals were formed from Imperial College Healthcare?
Answer: Unanswerable

Question: what trust has an annual income of $800 million/
Answer: Unanswerable

Question: How many hospitals teamed to form the NHS in 2006?
Answer: Unanswerable