1．Harry is Lily's

cousin

cousin

（ brother，cousin）．
2．Max is Lily's

brother

brother

（ brother，cousin ）．
3．Peter and William are

brothers

brothers

（ brothers，sisters）．
4．Cathy is Harry's

mother

mother

（ mother，grandmother）．
5．Tom is Lily's

grandfather

grandfather

（ father，grandfather）．
6．Peter is Lily's

uncle

uncle

（ aunt，uncle ）．