Given the task definition, example input & output, solve the new input case.
In this task, you're expected to write answers to questions involving multiple references to the same entity. The answer to the question should be unambiguous and a phrase in the paragraph. Most questions can have only one correct answer.
Example: Passage: Nearing London, Oliver encounters Jack Dawkins, a pickpocket more commonly known by the nickname the "Artful Dodger", and his sidekick, a boy of a humorous nature named Charley Bates, but Oliver's innocent and trusting nature fails to see any dishonesty in their actions. The Dodger provides Oliver with a free meal and tells him of a gentleman in London who will "give him lodgings for nothing, and never ask for change". Grateful for the unexpected assistance, Oliver follows the Dodger to the "old gentleman's" residence. In this way Oliver unwittingly falls in with an infamous Jewish criminal known as Fagin, the gentleman of whom the Artful Dodger spoke. Ensnared, Oliver lives with Fagin and his gang of juvenile pickpockets in their lair at Saffron Hill for some time, unaware of their criminal occupations. He believes they make wallets and handkerchiefs.
Question: Who believes Fagin's gang make wallets and handkerchiefs?
Output: Oliver.
In the sentence "He believes they make wallets and handkerchiefs", the pronoun "he" refers to name "Oliver".

New input case for you: Passage: Russ Ward is a Broadway producer with a 30-year record of success who has been out of town. On returning to New York, everybody wants a piece of him: ex-wife Kathryn Ward, hard-drinking playwright Jeremiah "Mac" MacDonald, magazine reporter Roy Morton, business manager Miles Atwood, and lawyer Charles Montgomery, one after another.
The main topic of discussion is Give Me Your Hand, the new play Russ is producing. The reporter hears it's in trouble, but Russ says that's untrue. It will be ready for its Boston tryout right on schedule, he vows.
Kathryn keeps reminding him of his age, which Russ likes to lie about. Russ tells loyal young secretary and student actress Ellie Brown it is likely time to retire because the new show is a mess. He and writer Mac have a story about a middle-aged man romancing a 22-year-old woman, and just can't seem to make it work.
Ellie is in love with Russ, so much so she proposes marriage to him. That gives him an idea. What if the play had the young woman pursuing the man? That way he wouldn't seem such a lecher. A delighted Mac rewrites it, and everyone involved works on it at the Long Island mansion where the former actress Kathryn lives, partly thanks to her alimony from Russ.
A rich backer named Bacos wants in, but Atwood says his money isn't needed because an anonymous angel is financing the whole show. Ellie reads the woman's part, and strikes everybody as perfect for it. Gordon Reynolds, an up-and-coming young actor in Ellie's acting class, gets the male lead, and promptly falls for Ellie, but she's being led on by Russ, who doesn't discourage her love for him.
Question: At whose house does Jeremiah "Mac" MacDonald do the rewrite?
Output:
Kathryn Ward.