In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Example input: 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.
Example output: Who believes Fagin's gang make wallets and handkerchiefs?.
Example explanation: This question is based on the following sentence in the passage "He believes they make wallets and handkerchiefs". It evaluates the understanding that the pronoun "he" refers to name "Oliver". You can ask questions like this one about most pronouns in a paragraph.
Q: Passage: Out of the four theaters included in plan H-1, of March 1930, the city only approved the construction of two; and thus, only these two theaters were constructed. Samuel "Roxy" Rothafel, a successful theater operator who was renowned for his dominance of the city's theater industry, joined the center's advisory board in 1930. He offered to build two theaters: a large, vaudeville "International Music Hall", on the northernmost block, with more than 6,200 seats; and the smaller, 3,500-seat "RKO Roxy" movie theater on the southernmost block. The idea for these theaters was inspired by Roxy's failed expansion of the 5,920-seat Roxy Theatre on 50th Street, one-and-a-half blocks away. Roxy also envisioned an elevated promenade between the two theaters, but this was never published in any of the official blueprints. Meanwhile, proposals for a Metropolitan Opera House on the site persisted. Official plans for a facility to the east of the RKO Roxy were filed in April 1932; the projected 4,042-seat opera facility would contain features such as a second-floor esplanade extending across 50th Street. However, the Met was unable to fund such a move, so the proposed new opera house was relegated to tentative status.In September 1931, a group of NBC managers and architects toured Europe to find performers and look at theater designs. However, the group did not find any significant architectural details that they could use in the Radio City theaters. In any case, Roxy's friend Peter B. Clark turned out to have much more innovative designs for the proposed theaters than the Europeans did. The Music Hall was designed by architect Edward Durell Stone and interior designer Donald Deskey in the Art Deco style. Eugene Schoen was selected to design the RKO Roxy.
A:
What is the last name of the person who offered to build two theaters?