SpaceX CRS-6
SpaceX CRS-6 , also known as SpX-6 , was a Commercial Resupply Service mission to the International Space Station , contracted to NASA . 
<triplet> SpaceX CRS-6 <subj> Commercial Resupply Service mission <obj> part of <subj> NASA <obj> operator <triplet> Commercial Resupply Service mission <subj> SpaceX CRS-6 <obj> has part <triplet> International Space Station <subj> NASA <obj> operator