概率上下文无关语法可以提供对这个问题的解决方法：从歧义中选择概率最大的解释。

Probabilistic context-free grammar can provide a solution to this problem: select the one whose probability is maximum from the ambiguity.

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probabilistic context - free grammar(或者说是PCFG)是一种上下文无关语法，它将其每一个产品关联到一个概率。

A probabilistic context-free grammar (or PCFG) is a context-free grammar that associates a probability with each of its productions.

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本文论述了基于概率的上下文无关语法的句法分析的原理及实现过程。

This dissertation discusses the theory and realization of the Probabilistic Context Free Grammar-based syntactic parser.

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