原句:forinstance,wearealltoofamiliarwiththereal-liferags-to-richesstoriesabouthowsoundparentingbynurturingandsensiblemotherspavedthewayforthegloriousfuturesuccessoftheiroffspring.
想知道:howsoundparentingbynurturingandsensiblemotherspaved
parenting是名词后面的bynurturingandsensiblemothers是parenting的定语
想问:那么paved的逻辑主语是parenting还是mothers