Simple Browser
: Welcome guest :
log in
[
Home

Graph
 ]
KB:
SUMO
Language:
ChineseLanguage
ChinesePinyinWriting
ChineseSimplifiedWriting
ChineseTraditionalLanguage
EnglishLanguage
FrenchLanguage
GermanLanguage
JapaneseLanguage
SpanishLanguage
SwedishLanguage
Formal Language:
OWL
SUOKIF
TPTP
traditionalLogic
Sigma KEE  Quadrilateral
KB Term:
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
Z
Quadrilateral
Any foursided
Polygon
.
Relationships
Parents
Polygon
A
ClosedTwoDimensionalFigure
that is composed exclusively of straight lines, i.e.
OneDimensionalFigure
s.
Children
Rectangle
Any
Quadrilateral
whose angles are all
RightAngle
s.
Show simplified definition with tree view
Show full definition (without tree view)
Show full definition (with tree view)
Sigma web home
Suggested Upper Merged Ontology (SUMO) web home
Sigma version 3.0 is
open source software
produced by
Articulate Software
and its partners