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the tree of life, |
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In the example, 'encyclopedia' is the parent of 'science' and 'culture', its children. 'Art' and 'craft' are siblings, and children of 'culture'.
Tree structures are used to depict all kinds of [[taxonomy|taxonomic]] knowledge, such as family trees, the [[tree of life]], the grammatical structure of a language (the famous example being S -> NP VP, meaning a sentence is a noun phrase and a verb phrase), the way web pages are logically ordered in a web site, et cetera.
Trees have a number of interesting properties:
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Tree structures are used extensively in [[computer science]] and [[telecommunications]].
See: [[tree graph]], [[hierarchical tree structure]], [[tree data structure]], [[B tree
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