Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Designated Grand Prix | Track | 250 cc | 350 cc | 500 cc | Report |
| --- | --- | --- | --- | --- | --- | --- |
| 1948 | Ulster Grand Prix | Clady | Maurice Cann | Freddie Frith | Enrico Lorenzetti | Report |
| 1947 | Swiss Grand Prix | Bremgarten | Bruno Francisci | Fergus Anderson | Omobono Tenni | Report |
| 1946 - 1938 | Not held | Not held | Not held | Not held | Not held | Not held |
| 1937 | Swiss Grand Prix | Bremgarten | Omobono Tenni | Jimmie Guthrie | Jimmie Guthrie | Report |
| 1936 | German Grand Prix | Sachsenring | Henry Tyrell-Smith | Freddie Frith | Jimmie Guthrie | Report |
| 1935 | Ulster Grand Prix | Clady | Arthur Geiß | Wal Handley | Jimmie Guthrie | Report |
| 1934 | Dutch TT | Assen | Walfried Winkler | Jimmie Simpson | Pol Demeuter | Report |
| 1933 | Swedish Grand Prix | Saxtorp | Charlie Dodson | Jimmie Simpson | Gunnar Kalén | Report |
| 1932 | Nations Grand Prix | Littorio | Riccardo Brusi | Louis Jeannin | Piero Taruffi | Report |
| 1931 | French Grand Prix | Montlhéry | Graham Walker | Ernie Nott | Percy Hunt | Report |
| 1930 | Belgian Grand Prix | Spa-Francorchamps | Syd Crabtree | Ernie Nott | Henry Tyrell-Smith | Report |
| 1929 | Spanish Grand Prix | Granollers | Frank Longman | Leo Davenport | Percy Hunt | Report |
| 1928 | Swiss Grand Prix | Meyrin | Cecil Ashby | Wal Handley | Wal Handley | Report |
| 1927 | German Grand Prix | Nürburgring | Cecil Ashby | Jimmie Simpson | Graham Walker | Report |
| 1926 | Belgian Grand Prix | Spa-Francorchamps | Jock Porter | Frank Longman | Jimmie Simpson | Report |
| 1925 | Nations Grand Prix | Monza | Jock Porter | Tazio Nuvolari | Mario Revelli | Report |
| 1924 | Nations Grand Prix | Monza | Maurice van Geert | Jimmie Simpson | Guido Mentasti | Report |
Question:
What grand prix was held at Granollers?
Answer:
Spanish Grand Prix