Assertion: comet's amount | /r/AtLocation | any solar system comets
Facets:
value: inside 2.5 astronomical units
type: LOCATION
Source sentences:
text: The measurements showed that the amount of CO compared to water was higher than had been observed in any solar system comets inside 2.5 astronomical units (a.u., the average distance between Earth and the Sun), the so-called water snow line where water ice starts to vaporize.