semantic restriction造句

For each high frequency affix head , its morphological rules are automatically derived . the semantic types of their modifiers are obtained as the restriction on the rules for compounds . then the propriety of an unknown compound is estimated by the similarity measure between the semantic class of its morpheme and the semantic restriction posted in the respective rules
我们以复合词为例，从语料库中，自动抽取各类复合词中的词干意类，用以训练规则，透过比对一未知词词干意类与规则意类间的相似度，判断其是否为合理的复合词。
It's difficult to find semantic restriction in a sentence. 用semantic restriction造句挺难的