Assertion: mercury's transit | /r/CapableOf | observe by his friend
Facets:
value: on 4 december
type: TEMPORAL
value: at each of their respective homes
type: LOCATION
Source sentences:
text: The 1639 transit of Venus was accurately predicted by Jeremiah Horrocks and observed by him and his friend, William Crabtree, at each of their respective homes, on 4 December 1639 (24 November under the Julian calendar in use at that time).