Table:
text: 1972 England rugby union tour of South Africa
Matches
Matches
Opposing_Team Against Date_ Venue Status_
Natal 0 May 17,1972 Durban Tour match
Western Province 6 May 20,1972 Cape Town Tour match
SA Rugby Fed XV 6 May 22,1972 Cape Town Tour match
SA Leopards 3 May 24,1972 Port Elizabeth Tour match
Northern Transvaal 13 May 27,1972 Pretoria Tour match
Giqualand West 21 May 30,1972 Kimberley Tour match
South Africa 9 June 3,1972 Ellis Park , Johannesburg Test Match

Question: What is the date if against is less than 6 and location was Durban in 1972 England rugby union tour of South Africa?