user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Stations' regarding 'Park Avenue main line'
Table Content:
| Zone | Station | Miles (km) from GCT | Date opened | Date closed | Connections / notes |
| --- | --- | --- | --- | --- | --- |
| 1 | Grand Central TerminalHandicapped/disabled access | 0.0 (0.0) | October 6, 1871 | - | - |
| 1 | 59th Street | - | - | - | - |
| 1 | 72nd Street | - | - | - | - |
| 1 | 86th Street | 2.2 (3.54) | May 15, 1876 | c. 1901 | - |
| 1 | 110th Street | 3.43 (5.52) | May 15, 1876 | June 17, 1906 | - |
| 1 | Harlem–125th Street Handicapped/disabled access | 4.2 (6.8) | October 25, 1897 | - | - |
| Park Avenue Bridge | Park Avenue Bridge | Park Avenue Bridge | Park Avenue Bridge | Park Avenue Bridge | Park Avenue Bridge |


Question
Which Park Ave Mainline stations both opened on the same day, and what day was that?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["The 110th Street, and the 86th Street stations both opened on May 15, 1876."]