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TextStructure—Wolfram Documentation

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TextStructure["text"]

generates a nested collection of TextElement objects representing the grammatical structure of natural language text.

TextStructure["text",form]

generates a representation of the type specified by form of the grammatical structure of text.

Details and Options
Details and Options Details and Options
Examples  
Basic Examples  
Scope  
Options  
PerformanceGoal  
Applications  
See Also
Related Guides
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TextStructure

TextStructure["text"]

generates a nested collection of TextElement objects representing the grammatical structure of natural language text.

TextStructure["text",form]

generates a representation of the type specified by form of the grammatical structure of text.

Details and Options

  • TextStructure[{text1,text2,…},…] yields a list with the respective results for texti.
  • Possible types of text structure include:
  • "ConstituentTree"nested text elements of phrase structure
    "ConstituentGraphs"graph of phrase structure
    "ConstituentStrings"string representing phrase structure
    "PartsOfSpeech"text elements tagging parts of speech
    "DependencyGraphs"graph of grammatical dependencies
    "DependencyStrings"string representing grammatical dependencies
  • The following option can be given:
  • PerformanceGoal Automaticfavor algorithms with specific advantages

Examples

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Basic Examples  (2)

Display the grammatical structure of a sentence:

Wolfram Language code: TextStructure["The cat sat on the mat."]

Display parts of speech tags:

Wolfram Language code: TextStructure["The cat sat on the mat.", "PartsOfSpeech"]

Scope  (6)

Display the constituent tree of a sentence:

Wolfram Language code: TextStructure["Time flies like an arrow.", "ConstituentTree"]

Return the constituent tree as a graph:

Wolfram Language code: TextStructure["The cat sat on the mat.", "ConstituentGraphs"]

Return the constituent tree as a string of nested parentheses:

Wolfram Language code: TextStructure["The cat sat on the mat.", "ConstituentStrings"]

Return the grammatical dependencies as a graph:

Wolfram Language code: TextStructure["The cat sat on the mat.", "DependencyGraphs"]

Display the dependency tree as a string of nested brackets:

Wolfram Language code: TextStructure["The cat sat on the mat.", "DependencyStrings"]

Display the grammatical structure of several sentences at once:

Wolfram Language code: TextStructure["The cat sat on the mat. The bat and a rat sat on a mat."]

Options  (1)

PerformanceGoal  (1)

Faster parts of speech tagging can be achieved by using PerformanceGoal->"Speed":

Wolfram Language code: RepeatedTiming[TextStructure["The cat sat on the mat. The bat and a rat sat on a mat.", "PartsOfSpeech"]]
Wolfram Language code: RepeatedTiming[TextStructure["The cat sat on the mat. The bat and a rat sat on a mat.", "PartsOfSpeech", PerformanceGoal -> "Speed"]]

Applications  (1)

Get the text content of a Wikipedia page using WikipediaData:

Wolfram Language code: wiki = WikipediaData["monkey"];
Wolfram Language code: StringLength[wiki]

Extract the first paragraph using TextCases:

Wolfram Language code: paragraph = First@TextCases[wiki, "Paragraph", 1]

Use TextStructure to visualize the grammatical structure of this paragraph:

Wolfram Language code: TextStructure[paragraph]
Wolfram Research (2015), TextStructure, Wolfram Language function, https://reference.wolfram.com/language/ref/TextStructure.html (updated 2019).

Text

Wolfram Research (2015), TextStructure, Wolfram Language function, https://reference.wolfram.com/language/ref/TextStructure.html (updated 2019).

CMS

Wolfram Language. 2015. "TextStructure." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2019. https://reference.wolfram.com/language/ref/TextStructure.html.

APA

Wolfram Language. (2015). TextStructure. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/TextStructure.html

BibTeX

@misc{reference.wolfram_2026_textstructure, author="Wolfram Research", title="{TextStructure}", year="2019", howpublished="\url{https://reference.wolfram.com/language/ref/TextStructure.html}", note=[Accessed: 14-November-2026]}

BibLaTeX

@online{reference.wolfram_2026_textstructure, organization={Wolfram Research}, title={TextStructure}, year={2019}, url={https://reference.wolfram.com/language/ref/TextStructure.html}, note=[Accessed: 14-November-2026]}