Assertion: soil's surface | /r/HasProperty | basic
Facets:
value: considerably
type: DEGREE
Source sentences:
text: However, in August, 2008, the Phoenix Lander conducted simple chemistry experiments, mixing water from Earth with Martian soil in an attempt to test its pH, and discovered traces of the salt perchlorate, while also confirming many scientists' theories that the Martian surface was considerably basic, measuring at 8.3.