. . _:b667483500 "2024-10-28T11:11:16.660366"^^ . "TwoDimensionalSpatialRegion" . "an infinitely thin plane in space."@en . _:b667483500 . . . . . . . . _:b667483500 . "(forall (x) (if (TwoDimensionalSpatialRegion x) (SpatialRegion x))) // axiom label in BFO2 CLIF: [039-001] " . . . "the surface of a sphere-shaped part of space"@en . . . . _:b667483500 . "A two-dimensional spatial region is a spatial region that is of two dimensions. (axiom label in BFO2 Reference: [039-001])"@en . "BFO:0000009"^^ . . . _:b667483500 . . . . _:b667483500 . . . "two-dimensional spatial region"@en . "2d-s-region" . . . . .