Coherence, derivable from relevance, is divided into two kinds: the coherence of propositionalcontent and the coherence of contextual effect.
连贯是关联的一个派生概念，分为两类：命题内容的连贯和语境效果的连贯。
2
Discourse relevance determines two types of conversational discourse coherence: propositionalcontent coherence and contextual effect coherence.
话语关联性决定着两种类型的会话语篇连贯：命题内容连贯和语境效果连贯。
3
On this basis, this paper makes a study of the aspectual meaning indicated respectively by the progressive form of the verb and by the propositionalcontent.