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:
| no | driver | entrant | constructor | chassis | engine |
| 1 | b bira | private | maserati | maserati 4clt / 48 | maserati l4s |
| 2 | emmanuel de graffenried | private | maserati | maserati 4clt / 48 | maserati l4s |
| 3 | tony rolt | private | alfa romeo | alfa romeo b | alfa romeo l8 |
| 4 | raymond mays ken richardson | t vandervell | ferrari | ferrari 125 | ferrari v12s |
| 5 | bob ansell | private | maserati | maserati 4 cm | maserati l4s |
| 6 | geoff ansell brian shawe - taylor | private | era | era b | era l6s |
| 7 | bob gerard | bob gerard racing | era | era b | era l6s |
| 8 | david hampshire billy cotton | private | era | era b | era l6s |
| 9 | david murray | private | maserati | maserati 4cl | maserati l4s |
| 10 | reg parnell | scuderia ambrosiana | maserati | maserati 4clt / 48 | maserati l4s |
| 11 | fred ashmore | scuderia ambrosiana | maserati | maserati 4clt / 48 | maserati l4s |
| 12 | luigi villoresi | scuderia ambrosiana | maserati | maserati 4clt / 48 | maserati l4s |
| 15 | louis chiron | sfacs ecurie france | talbot - lago | talbot - lago t26c | talbot l6 |
| 16 | louis rosier | private | talbot - lago | talbot - lago t26c | talbot l6 |
| 17 | yves giraud - cabantous | private | talbot - lago | talbot - lago t26c | talbot l6 |
| 18 | george abecassis | private | alta | alta gp | alta l4s |
| 19 | johnny claes | ecurie belge | talbot - lago | talbot - lago t26c | talbot l6 |
| 20 | george nixon | private | era | era a | era l6s |
| 21 | peter whitehead dudley folland | scuderia ferrari | ferrari | ferrari 125 | ferrari v12s |
| 22 | duncan hamilton philip fotheringham - parker | private | maserati | maserati 6 cm | maserati l6s |
| 24 | philippe ã‰tancelin | private | talbot - lago | talbot - lago t26c | talbot l6 |
| 25 | roy salvadori | private | maserati | maserati 4cl | maserati l4s |
| 26 | anthony baring | private | maserati | maserati 4 cm | maserati l4 |
| 27 | john bolster | ph bell | era | era b | era l6s |
| 28 | peter walker | pn whitehead | era | era b | era l6s |
Title:
1949 british grand prix
Statement:
five cars have era b chassis
Answer:
supported