claim: Personality is a set of individual similarities.
evidence: Moaner van Heerden born in Pretoria , is a former South African Rugby Union international .. Pretoria. Pretoria. Rugby Union. Rugby Union. He played as a lock .. lock. lock ( rugby union ). From 1974 to 1980 , van Heerden appeared in 17 Tests .. His son , Wikus van Heerden , is also a South African international who played for Saracens in the Guinness Premiership before retiring in 2012 .. Wikus van Heerden. Wikus van Heerden. Guinness Premiership. Guinness Premiership