Assertion: km | /r/HasProperty | 31 mi
Facets:
Source sentences:
text: The Moon's far side has a crust that is 50 km (31 mi) thicker than that of the near side.
text: Mandated every 50 kilometres (31 mi) or so, rest areas are usually open all night.
text: It extends from the stratopause at an altitude of about 50 km (31 mi; 160,000 ft) to the mesopause at 80–85 km (50–53 mi; 260,000–280,000 ft) above sea level.
text: Although some of the larger atolls are approximately 50 km (31 mi) long from north to south, and 30 km (19 mi) wide from east to west, no individual island is longer than eight kilometers.
text: The crust is on average about 50 kilometres (31 mi) thick.
text: The International Association of Ultrarunners (IAU) organises the World Championships for various ultramarathon distances, including 50 kilometres (31 mi), 100 kilometres (62 mi), 24 hours, and ultra trail running, which are also recognized by the IAAF.