Student A:When the Silence see the Doctor, they stir and begin to escape confinement; it is part of a trap arranged by Kovarian. The Silence then overload everyone's eyedrives, causing effects varying from great pain to death; Madame Kovarian not excepted. The Doctor and River escape to the top of the pyramid while Amy and Rory fight off a wave of Silence, and Amy realises who Rory is. Madame Kovarian dislodges her own eyedrive as it begins to overload, but Amy forces it back in place with the intention of killing her as revenge for her kidnapping baby daughter (Melody Pond). Amy and Rory regroup with River and the Doctor. River tries to convince the Doctor that this alternative frozen timeline is acceptable, but the Doctor explains that all of reality will soon break down if the fixed point event does not occur. River puts out a distress call that the Doctor is dying, and the skies fill with grateful friends arriving to help. River ways that if she has to kill him she will suffer just as much as the entire universe dying from time breaking down. The Doctor marries River on the spot and whispers in her ear, declaring that he told her his name. He then requests that River allow him to prevent the universe's destruction. The two kiss, time restarts, reality returns to normal, and the Doctor dies.

Based on this passage, what did doctor who whisper to river song?
Student B:OK... The relevant sentence in the passage is: The Doctor marries River on the spot and whispers in her ear, declaring that he told her his name.
his name.

Student A:Radio broadcasting in the United States is a major mass medium. Unlike radio in most other countries, American radio has historically relied primarily on commercial advertising sponsorship on for-profit stations. The U.S. does not have a national broadcaster that aims its programs at the general public. Nonprofit broadcasting typically comes in three forms: radio evangelism, community radio, and government-subsidized public radio, all of which rely at least to some extent on listener donations. Shortwave broadcasting in the United States includes federal government programs, as well as a limited number of privately managed broadcasts, for overseas audiences. Radio broadcasting became popular in the 1920s, alongside the new film industry. The arrival of television in the 1950s forced radio into a niche role, as leading participants moved into the much larger field of television. In the 21st century, radio has been adjusting to the arrival of the Internet and Internet radio.

Answer this question based on the passage: when did radio become popular in the us?
Student B:OK... The relevant information is: Radio broadcasting became popular in the 1920s, alongside the new film industry.
the 1920s.

Student A:Aadhaar is the world's largest biometric ID system, with over 1.171 billion enrolled members as of 15 Aug 2017. As of this date, over 99 % of Indians aged 18 and above had been enrolled in Aadhaar. World Bank Chief Economist Paul Romer described Aadhar as "the most sophisticated ID programme in (the) world".

Answer this question based on the passage: what are the uses of aadhar card in india?
Student B:OK... The relevant information is: Aadhaar is the world's largest biometric ID system, with over 1.171 billion enrolled members as of 15 Aug 2017.
biometric ID.

Student A:"If You Do n't Know Me by Now" is a song written by Kenny Gamble and Leon Huff, and recorded by the Philly soul musical group Harold Melvin & the Blue Notes. It became their first hit after being released as a single in 1972, topping the US R&B chart and peaking at number three on the US Pop chart.

Based on this passage, when did if you don't know me by now come out?
Student B:
OK... To answer the question, consider the following: It became their first hit after being released as a single in 1972, topping the US R&B chart and peaking at number three on the US Pop chart.
1972.