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 | City | Opponent | Results¹ | Type of game |
| --- | --- | --- | --- | --- |
| February 4 | Tunis , Tunisia | Tunisia | 5:0 | Friendly |
| May 9 | Munich , Germany | West Germany | 1:0 | Friendly |
| May 13 | Warsaw , Poland | Poland | 2:2 | Friendly |
| May 26 | Belgrade | Hungary | 1:1 | Friendly |
| October 21 | Zagreb | Spain | 0:0 | 1974 WCQ |
| December 19 | Athens , Greece | Greece | 4:2 | 1974 WCQ |
Question:
what are the results of the opponent of spain?
Answer:
0:0