x x

父母

[full siblings]

[half-siblings]

[on x x 's side]

祖先

[the great-grandparents]

         x x   x x   x x   x x
    |
12		   |
13		   |
14		   |
15
   
 
    |   |

[the grandparents]

     x x   x x
  |
6		   |
7
 
  |

[the parents]

 x x   x x
|
2		   |
3
|
  x x