Assertion: opportunity | /r/CapableOf | head towards marathon valley
Facets:
Source sentences:
text: Opportunity is moving south along the west rim of Endeavour Crater heading towards 'Marathon Valley,' a putative location for abundant clay minerals.
text: Opportunity is moving south along the west rim of Endeavour Crater heading towards 'Marathon Valley,' a notch observed from orbit to have an abundant clay mineral signature.
text: Opportunity is moving south along the west rim of Endeavour Crater heading towards 'Marathon Valley.'