Data from 'An exploration of the Facebook social networks of smokers and non-smokers' 
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:' Purpose For the purpose of informing tobacco intervention programs, this dataset was created and used to explore how online social networks of smokers differed from those of nonsmokers. The study was a secondary analysis of data collected as part of a randomized control trial conducted within Facebook. (See 'Other References' in 'Metadata' for parent study information.)Basic description of 4 anonymized data files of study participants.     fbr_friends: Anonymized Facebook friends networks, basic ego demographics, basic ego social media activity      fbr_family: Anonymized Facebook family networks, basic ego demographics, basic ego social media activity      fbr_photos: Anonymized Facebook photo networks, basic ego demographics, basic ego social media activit' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["internet","network analysis","social networks","tobacco"]} <|eot_id|>
 Here is the Description of a dataset. Description:' Purpose For the purpose of informing tobacco intervention programs, this dataset was created and used to explore how online social networks of smokers differed from those of nonsmokers. The study was a secondary analysis of data collected as part of a randomized control trial conducted within Facebook. (See 'Other References' in 'Metadata' for parent study information.)Basic description of 4 anonymized data files of study participants.     fbr_friends: Anonymized Facebook friends networks, basic ego demographics, basic ego social media activity      fbr_family: Anonymized Facebook family networks, basic ego demographics, basic ego social media activity      fbr_photos: Anonymized Facebook photo networks, basic ego demographics, basic ego social media activit' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
 Purpose For the purpose of informing tobacco intervention programs, this dataset was created and used to explore how online social networks of smokers differed from those of nonsmokers. The study was a secondary analysis of data collected as part of a randomized control trial conducted within Facebook. (See 'Other References' in 'Metadata' for parent study information.)Basic description of 4 anonymized data files of study participants.     fbr_friends: Anonymized Facebook friends networks, basic ego demographics, basic ego social media activity      fbr_family: Anonymized Facebook family networks, basic ego demographics, basic ego social media activity      fbr_photos: Anonymized Facebook photo networks, basic ego demographics, basic ego social media activit
internet; network analysis;  social networks; tobacco