谁能帮我解释一下这句话,并分析一下句子结构?

问题描述:

谁能帮我解释一下这句话,并分析一下句子结构?
Psychiatrists who work with older parents say that maturity can be an asset in child rearing-older parents are more thoughtful.

主语Psychiatrists ( 定语从句who work with older parents) 谓语say that (宾语从句maturity can be an asset in child rearing)----- 破折号 解释说明 older parents are more thoughtful.大体意思就是楼上说的~