1. Lucy is Betty's daughter.
--> Lucy is Betty's granddaughter.
2. Kate is Mary's aunt.
--> Kate is Mary's niece.
3. Kate is Lucy's twin sister.
--> Kate is Lucy's cousin.
4. Kate is Jane's mum.
--> Kate is Jane's child.
5. Dan is Sam's cousin.
--> Dan is Sam's nephew.
6. Tom is John's son.
--> Tom is John's grandson.