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 (", ").

Q: Paragraph- Sent 1: (CNN) -- Federal authorities are investigating threatening letters allegedly containing deadly ricin in Spokane, Washington, the FBI said Thursday.
Sent 2: The FBI and the U.S. Postal Inspection Service are trying to find the source of the two letters, intercepted Tuesday during a screening procedure at a postal facility in Spokane, FBI spokeswoman Ayn Sandalo Dietrich said.
Sent 3: "While we cannot offer further comment on this incident, we stress that law enforcement agencies will continue to assess and address the full spectrum of potential threats," she said.
Sent 4: The American Postal Workers Union was notified of the two suspicious letters by the Postal Service, the union said.
Sent 5: One letter was addressed to the Spokane Post Office and the other to a federal judge in Spokane, the union said.
Sent 6: Both were postmarked May 14, the union said.
Sent 7: Postal Service management told employees they weren't at risk from handling the letters because the suspected substance was not in a form that could be inhaled or readily ingested, the union said.
Sent 8: Preliminary lab tests showed the substance to be ricin, the union said.
Sent 9: The union is monitoring the situation, President Cliff Guffey said.
Sent 10: "Our members' safety is our primary concern," he said in a statement.
Sent 11: In an apparently unrelated case, ricin-tainted letters sent to President Obama and others touched off high anxieties in Washington and elsewhere last month.
Sent 12: James Everett Dutschke, 41, of Tupelo, Mississippi, has been charged with possession and use of a biological agent as a weapon in connection with those letters sent to Obama and others.
Question: The FBI and the U.S. Postal Inspection Service are trying to find the source of the two letters which contained what?.

A: 1, 2.
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Q: Paragraph- Sent 1: In actual practice, however, we act too often as if we only cared for economic values.
Sent 2: If we are to live up to our educational profession, we must look our aim in the face and honestly practise what we believe.
Sent 3: While training of character and conduct is the accepted aim for education in general, to make this useful and practical each teacher must fix her attention on how this ultimate aim affects her own special part of the whole work.
Sent 4: By watching the free child she will discover how best she can help him: he knows his own business, and when unfettered by advice or command shows plainly that he is chiefly concerned with _gaining experience_.
Sent 5: He finds himself in what is to him a new and complex world of people and things; actual experience is the foundation for complete living, and the stronger the foundation the better the result of later building.
Sent 6: _The first vital principle then is that the teacher of young children must provide life in miniature; that is, she must provide abundant raw material and opportunities for experience_.
Question: How do the aim of education and the actual practice differ?.

A: 1, 3.
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Q: Paragraph- Sent 1: Two women trade houses without ever having met .
Sent 2: They 're both looking for an escape from their problems , but by running away , both come to discover a great deal about themselves .
Sent 3: Ria Lynch is married to Danny Lynch and they have a daughter and a son .
Sent 4: Danny begins spending less and less time at home with his wife and children .
Sent 5: Ria believes another baby is the solution , and is shocked to find out that indeed her husband is going to be a father - but to a child from an affair he has been having .
Sent 6: Her husband 's unfaithfulness is the event that leads Ria into her decision to switch homes with a woman from the US called Marilyn who lost her teenage son to a motorcycle accident on his birthday .
Sent 7: Marilyn is struggling to come to terms with her son 's death and has become estranged from her husband .
Sent 8: She hopes her time in Dublin will cease her grief .
Sent 9: Ria and Marilyn discover deep , dark secrets about the other during the summer .
Sent 10: The two become close friends but do not reveal the secrets .
Question: What is the problem the Marilyn is trying to escape from?.

A:
6, 7.
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