You will be presented with a citation segment from the section of an NLP research paper, as well as the context surrounding that citation. Classify the intent behind this citation by choosing from one of the following categories:
- Background: provides context or foundational information related to the topic.
- Extends: builds upon the cited work.
- Uses: applies the methods or findings of the cited work.
- Motivation: cites the work as inspiration or rationale for the research.
- CompareOrContrast: compares or contrasts the cited work with others.
- FutureWork: cites the work as a direction for future research.

Your answer should be a single word from the following list of options: ["Background", "Extends", "Uses", "Motivation", "CompareOrContrast", "FutureWork"]. Do not include any other text in your response.

Section Title:
None

Context before the citation:
Provided with the candidate fragment elements, we previously (Wang and Callison-Burch, 2011) used a chunker3 to finalize the output fragments, in order to follow the linguistic definition of a (para-) phrase. All the word alignments (excluding stop-words) with positive scores are selected as candidate fragment elements. Smoothing (step 2) is done for each word by taking the average score of it and its four neighbor words.

Citation Sentence:
Provided with the candidate fragment elements , we previously ( Wang and Callison-Burch , 2011 ) used a chunker3 to finalize the output fragments , in order to follow the linguistic definition of a ( para - ) phrase .

Context after the citation:
We extend this step in the current system by applying a dependency parser to constrain the boundary of the fragments (Sec. 5.3). Finally, we filter out trivial fragment pairs, such as identical or the original sentence pairs.
Extends