question: Why was the Kulluk oil rig being towed to Washington ?
answer: to be serviced in preparation for the 2013 drilling season
turker_answer: The Kulluk oil rig was being towed to Washington to be serviced in preparation for the 2013 drilling season .
rule-based: The Kulluk oil rig was being towed to Washington to be serviced in preparation for the 2013 drilling season .