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: "Diamonds" is a song recorded by Barbadian singer Rihanna for her seventh studio album, Unapologetic (2012). It was written by Sia Furler together with its producers, Benny Blanco and StarGate. The song premiered on September 26, 2012, during the Elvis Duran and the Morning Show and was digitally released the following day as the lead single from Unapologetic. Def Jam Recordings serviced the single to contemporary hit radio in the United States on October 2. "Diamonds" is a mid-tempo pop, electronic and R&B ballad that features heavy synthesizers, orchestral sounds and electronic rhythms. The song's lyrics serve as a departure from the themes of unhealthy relationships that were on Rihanna's previous singles and contain a prominent concept of love.
"Diamonds" topped music charts in over twenty countries, including the United States, where it became Rihanna's twelfth number one single on the Billboard Hot 100 and tied her with Madonna and The Supremes for the fifth-most number one singles in the chart's history. "Diamonds" was certified quintuple platinum by the Recording Industry Association of America (RIAA) and sold over 3.5 million digital copies in the country. By May 2013, it had sold over 7.5 million copies worldwide and became one of the best-selling singles of all-time.
The song's music video was shot by director Anthony Mandler, a frequent collaborator of Rihanna's, and depicts her in four environments that represent the elements of earth, air, water, and fire. The video received positive reviews and was praised for its imagery. Some critics believe that the heavily tattooed man intertwined with Rihanna's arm in the video resembles Chris Brown. The singer performed "Diamonds" on television shows such as Saturday Night Live and The X Factor and included it on the 777, Diamonds, Monster Tour and the Anti World Tour set lists. The American Society of Composers, Authors and Publishers (ASCAP) recognized it as one of the most performed songs of 2013 and 2014. The official remix of "Diamonds" featured rapper Kanye West and was released on November 16, 2012. The song has been covered by various recording artists, including Josef Salvat, who released his own cover of "Diamonds" as a single.
A:
What is the name of the person who was tied with Madonna for fifth-most number one singles in the Billboard Hot 100's chart history?