Abstract
During the transformation process described in Section 4 and 5, we operate both on the clausal and phrasal level of a sentence by recursively splitting and rephrasing complex multi-clause sentences into sequences of simple sentences that each contain exactly one independent clause, and extracting selected phrasal components into stand-alone sentences. In the following, we will discuss in detail the 35 patterns that we specified to carry out this transformation process.
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Notes
- 1.
For details on the rule syntax, see Levy and Andrew (2006).
- 2.
In the discussion of the remaining linguistic constructs, we will restrict ourselves to reporting the Tregex patterns that we specified for carrying out the transformation process. Besides, some selected rules will be illustrated in the form of a phrasal parse tree and their application to an example sentence in the online supplemental material (see Section 19.2).
- 3.
Rule #4 to #7 are lexicalized on the preposition “to” and always mapped to a “Purpose” relationship.
- 4.
The only exception are relative clauses commencing with the relative pronoun “where” (Rule #9). As they provide details about a location, we assign a “Spatial” relationship between the split sentences in this case.
- 5.
The full list of verbs that we specified for identifying attributions can be found in Section 20.2. in the online supplemental material.
- 6.
Note that participial phrases introduced by adverbial connectors, such as in the example sentence of Table 6.8d, form an exception of this principle. In such a case, the adverbial connector determines the semantic relationship that holds between the decomposed spans, acting as the cue phrase for identifying the type of rhetorical relation connecting them.
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Niklaus, C. (2022). Transformation Patterns. In: From Complex Sentences to a Formal Semantic Representation using Syntactic Text Simplification and Open Information Extraction. Springer Vieweg, Wiesbaden. https://doi.org/10.1007/978-3-658-38697-9_6
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DOI: https://doi.org/10.1007/978-3-658-38697-9_6
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