It lets the user build the tree in a point-and-click fashion. The program does no analysis on its own -- the user is completely free to draw the tree however he or she wishes. However, the program makes sure that the tree is a tree and not some other kind of graph.

LTC is a free program for building linguistic syntax trees from text.

It lets the user build the tree in a point-and-click fashion.

The program does no analysis on its own -- the user is completely free to draw the tree however he or she wishes. However, the program makes sure that the tree is a tree and not some other kind of graph.

Three 'flavors' of trees are supported:

'Generic' syntax trees,
X-Bar syntax trees
RRG (Role and Reference Grammar) syntax trees (the LSC and the LSNP)
Labeling of nodes
The program supports adding 'labels' to nodes. These labels are userdefinable, and can be used for such things as:

Rhetorical Structure Theory analyses
Other discourse-level analyses
RRG operator-projection analyses
Subject-Object-Predicate analyses
etc.

Features
Draw syntax trees using point-and-click
Supports the following linguistic levels:
Word
Phrase
Clause
Clause cluster
Sentence
Paragraph
Arbitrary, user-defined levels...
RRG
XBar
Text
Phrase-level categories are user-definable
Both tree-view and brackets-view are supported
Supports up to five interlinear lines at word-level
Interlinear lines can be switched on and off individually
Change colors of individual parts of the display
Switch bracketing on and off for constituent levels
Change magnification
Unlimited undo
Copy (parts of) tree to clipboard as bitmap
Printing
Uses any font (including Unicode fonts)
Supports right-to-left languages as well as left-to-right
Import from straight text (plain text)
Import from word-per-record SFM interlinear text
Export to XML via Annotation Graph XML (AGXML)

Related keywords: