Assertion: mercury | /r/HasAspect | slow spin
Facets:
Source sentences:
text: Because Mercury has a slow spin and short year, it takes a long time for the sun to rise and set there.
text: Because Mercury has an elliptical orbit around the sun--compared with Earth's circular orbit--and because it has such a slow rotation, this makes the sun appear to move in a way that people from Earth would find highly unusual.