You are given a paragraph, with numbered sentences, and a question. Write the numbers of the sentences needed to answer the given question. Separate multiple sentence numbers with a comma (", "). E.g. "1, 2" would be the correct response if Sent 1 and Sent 2 are needed to answer the given question (do not include sentences that contain no information that is necessary to answer the question). Sort the sentence numbers in an increasing order (i.e., '1, 2', instead of '2, 1'). Your answer should not contain anything than the sentence numbers separated by a comma (e.g. '1, 2, 3, 4'). The given question requires more than one sentence to answer. So, your answer must contain at least one comma (", ").

Input: Consider Input: Paragraph- Sent 1: Energy often changes from one form to another.
Sent 2: For example, the drummer transfers motion to sound energy.
Sent 3: When the moving drumstick strikes the drum head, the drum starts to vibrate.
Sent 4: The motion of the vibrating drum head creates the sound you hear.
Sent 5: Any form of energy can change into any other form.
Sent 6: Frequently, one form of energy changes into two or more different forms.
Sent 7: Have you ever sat in front of a campfire?
Sent 8: What are two things you notice?
Sent 9: The fire creates light.
Sent 10: It is also warm by the fire, meaning it creates heat.
Sent 11: The energy of the fire comes from the stored energy in the wood.
Sent 12: The wood contains chemical energy.
Sent 13: As it burns, the chemical energy is changed into light and heat.
Sent 14: Not all chemical energy changes produce light and heat.
Sent 15: Our cars use gasoline as a fuel.
Sent 16: Gasoline contains chemical energy.
Sent 17: When our cars burn gasoline in their engines, it is converted into motion and heat.
Sent 18: When energy changes forms, energy is conserved.
Question: How does a drummer transfer motion energy to sound energy?.

Output: 2, 3, 4.

Input: Consider Input: Paragraph- Sent 1: Born on May 11, 1975, in Mazraa, Lebanon, Ziad Jarrah came from an affluent family and attended private, Christian schools.
Sent 2: Like Atta, Binalshibh, and Shehhi, Jarrah aspired to pursue higher education in Germany.
Sent 3: In April 1996, he and a cousin enrolled at a junior college in Greifswald, in northeastern Germany.
Sent 4: There Jarrah met and became intimate with Aysel Senguen, the daughter of Turkish immigrants, who was preparing to study dentistry.
Sent 5: Even with the benefit of hindsight, Jarrah hardly seems a likely candidate for becoming an Islamic extremist.
Sent 6: Far from displaying radical beliefs when he first moved to Germany, he arrived with a reputation for knowing where to find the best discos and beaches in Beirut, and in Greifswald was known to enjoy student parties and drinking beer.
Sent 7: Although he continued to share an apartment in Greifswald with his cousin, Jarrah was mostly at Senguen's apartment.
Sent 8: Witnesses interviewed by German authorities after 9/11, however, recall that Jarrah started showing signs of radicalization as early as the end of 1996.
Sent 9: After returning from a trip home to Lebanon, Jarrah started living more strictly according to the Koran.
Sent 10: He read brochures in Arabic about jihad, held forth to friends on the subject of holy war, and professed disaffection with his previous life and a desire not to leave the world "in a natural way."Sent 11: In September 1997, Jarrah abruptly switched his intended course of study from dentistry to aircraft engineering-at the Technical University of Hamburg-Harburg.
Sent 12: His motivation for this decision remains unclear.
Sent 13: The rationale he expressed to Senguen-that he had been interested in aviation since playing with toy airplanes as a child-rings somewhat hollow.
Sent 14: In any event, Jarrah appears already to have had Hamburg contacts by this time, some of whom may have played a role in steering him toward Islamic extremism.
Sent 15: Following his move to Hamburg that fall, he began visiting Senguen in Greifswald on weekends, until she moved to the German city of Bochum one year later to enroll in dental school.
Sent 16: Around the same time, he began speaking increasingly about religion, and his visits to Senguen became less and less frequent.
Sent 17: He began criticizing her for not being religious enough and for dressing too provocatively.
Sent 18: He grew a full beard and started praying regularly.
Question: WHO DID JARRAH MET AND BECOME INTAMATE WITH?.

Output: 4.

Input: Consider Input: Paragraph- Sent 1: (CNN) -- Horror-meister, Stephen King calls George Pelecanos "perhaps the greatest living American crime writer."Sent 2: His stories are set in Pelecanos' hometown of Washington, D.C., but this is not the side of the U.S. capitol that you see portrayed on TV with white marble monuments, lawyers and lobbyists.
Sent 3: Pelecanos is more interested in working families struggling to get by, the racial tensions in its ethnic neighborhoods and the low-lifes on the edges.
Sent 4: His crime-writing peers call Pelecanos the "undisputed poet" of Washington's gritty side.
Sent 5: The best-selling and award-winning author is out this week with his 17th and latest novel, "The Cut."Sent 6: It's the first in a new series featuring Iraq war veteran and private investigator Spero Lucas.
Sent 7: When he's not working for a Washington defense attorney, Lucas recovers stolen property for a 40% cut.
Sent 8: Now, a high-profile crime boss hires Lucas to find out who's been stealing from him, and it could turn out to be Lucas' biggest payday or an untimely end.
Sent 9: While Pelecanos made his bones in the noir tradition, there's a definite "Western" feel to "The Cut."Sent 10: The new novel takes place in a morally gray and often violent world.
Sent 11: It's peppered with pitch-perfect dialogue and captures the sights, sounds and taste of Washington in rich detail.
Sent 12: In short, Pelecanos reads like the real deal.
Sent 13: Pelecanos knows a thing or two about capturing the authenticity of urban America with an ethnically and socially diverse cast.
Sent 14: In addition to his success as a novelist, Pelecanos is a producer and writer for HBO's New Orleans-set, "Treme."Sent 15: He was previously a producer and Emmy-nominated writer on the hit series "The Wire" and the miniseries "The Pacific."Sent 16: Read an excerpt from "The Cut" CNN recently spoke to Pelecanos about his new novel.
Sent 17: The following is an edited transcript.
Sent 18: CNN: Tell me more about your new character, Spero Lucas.
Question: As a private investigator, who does Spero Lucas work for in Pelecanos newest novel, "The Cut"?.
Output: 6, 7.