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:
| Group name | English abbr. | French abbr. | Formal European Parliament name | From |
| --- | --- | --- | --- | --- |
| European Democratic Union | n/a | UDE | European Democratic Union Group | 21 January 1965 |
| European Progressive Democrats | EPD | DEP | Group of European Progressive Democrats | 16 January 1973 |
| European Democratic Alliance | EDA | RDE | Group of the European Democratic Alliance | 24 July 1984 |
| Group Union for Europe | UFE | UPE | "Group Union for Europe" | 6 July 1995 |
| Union for Europe of the Nations | UEN | n/a | Union for Europe of the Nations Group | 20 July 1999 |
Question:
On the date of 20 July 1999 what is the English abbr.?
Answer:
UEN