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:
| name | circuit | date | winning driver | winning constructor | report |
| targa florio | madonie | 15 april | ugo sivocci | alfa romeo | report |
| cremona circuit | cremona | 6 may | antonio ascari | alfa romeo | report |
| mugello circuit | mugello | 10 june | gastone brilli - peri | steyr | report |
| savio circuit | ravenna | 17 june | enzo ferrari | alfa romeo | report |
| san sebastián grand prix | lasarte | 25 july | albert guyot | rolland - pilain | report |
| coppa montenero | montenero | 26 august | mario razzauti | ansaldo | report |
| spanish grand prix | sitges - terramar | 28 october | albert divo | sunbeam | report |
| garda circuit | salò | 25 november | guido meregalli | diatto | report |
Title:
1923 grand prix season
Statement:
the winning driver on 15 april was ugo sivocci and the winning driver on 6 may was antonio ascari , both with steyr as the winning constructor
Answer:
refuted