BA - BA-Paper-II- Structure of English-II: SYNTAXWinter...

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Unformatted text preview: BA-Paper-II- Structure of English-II: SYNTAXWinter Semester, 2012Geometry of trees•A collection of lines and labels with an internal organization like syntactic trees is a geometric object•This unit is about the purely formal properties of trees•This is important because many syntactic phenomena make explicit reference to the geometry of treesParts of a tree•Branch: A line connecting two parts of a tree•Node: The end of a branch; a node with two or more branches below it is said to be branching; a node that has a single branch below it is said to be non-branching•Label: The name given to a node.•Root node(preliminary): The node with no line on top of it. •Terminal node(preliminary): Any node with no branch underneath it. •Non-terminal node(preliminary): Any node with a branch underneath it.Structural relations•Domination: Node A dominates node B if and only if A is higher up in the tree than B and if you can trace a line from A to B going only downwards.•Exhaustive domination: Node A exhaustively dominates a set of terminal nodes {B, C, ..., D}, provided it dominates all the members of the set (so that there is no member of the set that is not dominated by A) and there is no terminal node G dominated by A that is not a member of the set.by A that is not a member of the set....
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This note was uploaded on 03/19/2012 for the course BA 232 taught by Professor Anishkoshy during the Spring '12 term at Faculty of English Commerce Ain Shams University.

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BA - BA-Paper-II- Structure of English-II: SYNTAXWinter...

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