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To advance research on animated GIF understanding , we collected a new dataset , Tumblr GIF -LRB- TGIF -RRB- , with 100K animated GIFs from Tumblr and 120K natural language descriptions obtained via crowdsourcing .
 used for: dataset, animated GIF understanding; conjunction: natural language descriptions, animated GIFs; used for: crowdsourcing, natural language descriptions
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: conjunction, feature of, hyponym of, used for, part of, compare, evaluate for 
Text: {0} 
 Entity Pairs:  dataset, animated GIF understanding; natural language descriptions, animated GIFs; crowdsourcing, natural language descriptions 
Answer:
 used for: dataset, animated GIF understanding; conjunction: natural language descriptions, animated GIFs; used for: crowdsourcing, natural language descriptions