Assertion: spider's part | /r/CapableOf | see all of a circle
Facets:
Source sentences:
text: Like all jumping spiders, Portias can take in only a small visual field at one time, as the most acute part of a main eye can see all of a circle up to 12 millimetres (1⁄ 2 in) wide at 20 centimetres (8 in) away, or up to 18 millimetres (3⁄ 4 in) wide at 30 centimetres (12 in) away.