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Sigma KEE - Ladder
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
Ladder
An Artifact which consists of two parallel supports connected by a series of rungs which can be used to ascend or descend.
Relationships      
Parents Artifact An Object that is the product of a Making.


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Sigma version 3.0 is open source software produced by Articulate Software and its partners