Triple Extraction from Unstructured Text (Intro)
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Triple Extraction from Verbs
Verbs are basic to sentences. Verbs determine the other constituents (of the sentence), and define the relationship between these constituents. A verb can tell you that a certain noun phrase functions as a subject, or that another other noun phrase functions as an object, or a predicate noun, or perhaps an object complement.
There are six types of verbs that define core sentences. These verbs are differentiated by two criteria:
The six basic verb types are:
Triple Extraction from Prepositions
Prepositions are function words and characteristically express spatial relations. Like any function word, prepositions are important for the structure they bring to a sentence.