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:
We follow the notation convention of Lari and Young (1990). The process is similar to that for computing the probability of the entire sentence from the probabilities of substrings (called Inside Probabilities). For illustrative purposes, we describe the computation process using a PCFG expressed in Chomsky normal form.14 The basic idea is to compose the tree entropy of the entire sentence from the tree entropy of the subtrees.

Citation Sentence:
We follow the notation convention of Lari and Young ( 1990 ) .

Context after the citation:
The inside probability of a nonterminal X generating the substring wi ... wj is denoted as e(X, i, j); it is the sum of the probabilities of all possible subtrees that have X as the root and wi ... wj as the leaf nodes. We define a new function h(X, i, j) to represent the corresponding entropy for the substring: where G is the current model. Under this notation, the tree entropy of a sentence, E P(v  |G) lg P(v  |G), is denoted as h(S,1, n).
Uses