1) Colin... ... son
2) Jane.... Andy's.... .
3) Andy... Jane's... .
4) Mark... ... uncle.
5) Carol and Colin... ... cousins.
6) Paul... Carol, Colin and Andy's... .
7) Carol... Mark's... .
8) Carol... David's... .

1.  David's and Jane's2. Aunt3. Nephew4. is Carol's and Colin's5. are Mark's and Mary's6. Dan's and Jane's7. is; grandfather7. is; niece8. is; daughter