Assertion: international space station | /r/HasProperty | us$70 million
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Source sentences:
text: Musk said that the cost of the mission would be "comparable" to that of sending an astronaut to the International Space Station, about US$70 million in 2017.  
text: Musk said that the cost of the mission would be "comparable" to that of sending an astronaut to the International Space Station, about US$70 million in 2017.