This is the (children's childrens') room These are the (boy's boys') families My (son's sons' ) names are Ben and Tom Look at the (womens' women's)hats This is my (sister's sisters') daughter Do you know the (mans' man's) name.
This is the children's room These are the boys' families My sons' names are Ben and Tom Look at the women's hats This is my sister's daughter Do you know the man's name
The corrections should be:
This is the children's room
These are the boys' families
My sons' names are Ben and Tom
Look at the women's hats
This is my sister's daughter
Do you know the man's name