Answer the question from the given passage. Your answer should be directly extracted from the passage, and it should be a single entity, name, or number, not a sentence.

Example input: Passage: Martin Luther married Katharina von Bora, one of 12 nuns he had helped escape from the Nimbschen Cistercian convent in April 1523, when he arranged for them to be smuggled out in herring barrels. Suddenly, and while I was occupied with far different thoughts, he wrote to Wenceslaus Link, “the Lord has plunged me into marriage. At the time of their marriage, Katharina was 26 years old and Luther was 41 years old. Question: In a letter who did Luther credit for his union with Katharina?
Example output: the Lord
Example explanation: The paragraph clearly states that, Luther has credited the Lord for his union with Katharina, hence the Lord is correct answer.
Q: Passage: The Grainger Market replaced an earlier market originally built in 1808 called the Butcher Market. The Grainger Market itself, was opened in 1835 and was Newcastle's first indoor market. At the time of its opening in 1835 it was said to be one of the largest and most beautiful markets in Europe. The opening was celebrated with a grand dinner attended by 2000 guests, and the Laing Art Gallery has a painting of this event. With the exception of the timber roof which was destroyed by a fire in 1901 and replaced by latticed-steel arches the Market is largely in its original condition. The Grainger Market architecture, like most in Grainger Town, which are either grade I or II listed, was listed grade I in 1954 by English Heritage. Question: How many guests attended the dinner celebrating the opening of the Grainger Market?
A:
2000