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:
| Date | Course | Distance | Type | Winner |
| --- | --- | --- | --- | --- |
| 18 May | Bari to Bari | km (mi) | Individual time trial | Gianni Bugno ( ITA ) |
| 19 May | Bari to Sala Consilina | km (mi) | Hilly stage | Giovanni Fidanza ( ITA ) |
| 20 May | Sala Consilina to Mount Vesuvius | km (mi) | Hilly stage | Eduardo Chozas ( ESP ) |
| 21 May | Ercolano to Nola | km (mi) | Plain stage | Stefano Allocchio ( ITA ) |
| 21 May | Nola to Sora | km (mi) | Plain stage | Phil Anderson ( AUS ) |
| 22 May | Sora to Teramo | km (mi) | Hilly stage | Fabrizio Convalle ( ITA ) |
| 23 May | Teramo to Fabriano | km (mi) | Hilly stage | Luca Gelfi ( ITA ) |
| 24 May | Fabriano to Vallombrosa | km (mi) | Hilly stage | Gianni Bugno ( ITA ) |
| 25 May | Reggello to Marina di Pietrasanta | km (mi) | Plain stage | Stefano Allocchio ( ITA ) |
| 26 May | La Spezia to Langhirano | km (mi) | Hilly stage | Vladimir Poulnikov ( URS ) |
| 27 May | Grinzane Cavour to Cuneo | km (mi) | Individual time trial | Luca Gelfi ( ITA ) |
| 28 May | Cuneo to Lodi | km (mi) | Plain stage | Adriano Baffi ( ITA ) |
| 29 May | Brescia to Baselga di Pinè | km (mi) | Hilly stage | Éric Boyer ( FRA ) |
| 30 May | Baselga di Pinè to Udine | km (mi) | Plain stage | Mario Cipollini ( ITA ) |
| 31 May | Klagenfurt ( Austria ) to Klagenfurt ( Austria ) | km (mi) | Hilly stage | Alan Peiper ( AUS ) |
| 1 June | Velden am Wörther See ( Austria ) to Dobbiaco | km (mi) | Stage with mountain(s) | Éric Boyer ( FRA ) |
| 2 June | Dobbiaco to Passo Pordoi | km (mi) | Stage with mountain(s) | Charly Mottet ( FRA ) |
| 3 June | Moena to Aprica | km (mi) | Stage with mountain(s) | Leonardo Sierra ( VEN ) |
| 4 June | Aprica to Gallarate | km (mi) | Plain stage | Adriano Baffi ( ITA ) |
| 5 June | Gallarate to Sacro Monte di Varese | km (mi) | Individual time trial | Gianni Bugno ( ITA ) |
| 6 June | Milan to Milan | km (mi) | Plain stage | Mario Cipollini ( ITA ) |
| Total | Total | km (mi) | km (mi) | km (mi) |
Question:
What was the date with a hilly stage?
Answer:
19 May, 20 May, 22 May, 23 May, 24 May, 26 May, 29 May, 31 May