Definition: 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: Paragraph- Sent 1:   Arthur Weldon had not been very enthusiastic about the paper at any time, although he humored the girls by attending in a good-natured way to the advertising, hiring some of the country folk to get subscriptions, and keeping the books.
Sent 2: He was a young man of considerable education who had inherited a large fortune, safely invested, and therefore had no need, through financial necessity, to interest himself in business of any sort.
Sent 3: He allowed the girls to print his name as editor in chief, but he did no editorial work at all, amusing himself these delightful summer days by wandering in the woods, where he collected botanical specimens, or sitting with Uncle John on the lawn, where they read together or played chess.
Sent 4: Both the men were glad the girls were happy in their work and enthusiastic over the success of their audacious venture.
Sent 5: Beth was developing decided talent as a writer of editorials and her articles were even more thoughtful and dignified than were those of Patsy.
Sent 6: The two girls found plenty to occupy them at the office, while Louise did the reportorial work and flitted through Millville and down to Huntingdon each day in search of small items of local interest.
Sent 7: She grew fond of this work, for it brought her close to the people and enabled her to study their characters and peculiarities.
Sent 8: Her manner of approaching the simple country folk was so gracious and winning that they freely gave her any information they possessed, and chatted with her unreservedly. 
Question: What did Louise study about the people she grew close to while reporting?.
Output:
6, 7.