Jack is Margret's .....
grandson
John is Mark's ....
brother
Elizabeth is John's ....
wife
Sara is Mark's ...
niece
Ronald is Lucy’s...
Grandfather
John is Sara’s ....
father
Mark is Susan's...
husband
Mark is Jack’s...
father
Elizabeth is Lucy’s ...
aunt
Margaret is Sara’s ...
grandmother
Jack is Lucy’s...
brother
Lucy’s is Jack’s...
sister
Margaret is Susan's ....
mother-in-law
Lucy is Ronald's ...
granddaughter
Ronald and Margaret are Sara, Lucy and Jack's ......
granparents
Jack is John's ...
nephew
Ronald is Elizabeth's ....
father-in-law
Susan is Jack’s ...
mother
Sara is John's ....
daughter
Sara is Jack’s ...
cousin
Mark is Sara’s...
uncle