Give you a statement and table with its title in Markdown format, please determine whether the statement is supported or refuted by, or is unrelated to the table. It'a binary classification problem, you should choose the answer between supported and refuted. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| round | circuit | date | class a winner | class b winner | class c winner | class d winner |
| 1 | snetterton motor racing circuit , norfolk | 25 march | george 'doc' shepherd | alan hutcheson | none (no entries) | gawaine baillie |
| 2 | goodwood circuit , west sussex | 3 april | john whitmore | bill blydenstein | ellis cuff - miller | mike parkes |
| 3 | aintree motor racing circuit , liverpool | 22 april | john whitmore | alan hutcheson | chris kerrison | roy salvadori |
| 4 | silverstone circuit , northamptonshire | 6 may | bill aston | peter harper | chris kerrison | graham hill |
| 5 | crystal palace , london | 22 may | george 'doc' shepherd | bill blydenstein | none (no entries) | roy salvadori |
| 6 | silverstone circuit , northamptonshire | 8 july | herbert linge | ellis cuff - miller | chris kerrison | mike parkes |
| 7 | brands hatch , kent | 7 august | frank hamlin | alan hutcheson | chris kerrison | mike parkes |
| 8 | oulton park , cheshire | 23 september | john whitmore | peter harper | none (no entries) | roy salvadori |
Title:
1961 british saloon car championship season
Statement:
george 'doc' shepherd was the class a winner at the silverstone circuit , northamptonshire
Answer:
refuted