user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Tour dates' regarding 'Eric Clapton World Tour (2019)'
Table Content:
| Date | City | Country | Venue | Attendance | Box Office |
| --- | --- | --- | --- | --- | --- |
| Asia | Asia | Asia | Asia | Asia | Asia |
| 13 April 2019 | Tokyo | Japan | Nippon Budokan | 72,350 / 72,350 | $8,712,387 |
| 15 April 2019 | Tokyo | Japan | Nippon Budokan | 72,350 / 72,350 | $8,712,387 |
| 17 April 2019 | Tokyo | Japan | Nippon Budokan | 72,350 / 72,350 | $8,712,387 |
| 18 April 2019 | Tokyo | Japan | Nippon Budokan | 72,350 / 72,350 | $8,712,387 |
| 20 April 2019 | Tokyo | Japan | Nippon Budokan | 72,350 / 72,350 | $8,712,387 |
| Europe | Europe | Europe | Europe | Europe | Europe |
| 13 May 2019 | London | England | Royal Albert Hall | — | — |
| 15 May 2019 | London | England | Royal Albert Hall | — | — |
| 16 May 2019 | London | England | Royal Albert Hall | — | — |
| 4 June 2019 | Berlin | Germany | Mercedes-Benz Arena | — | — |
| 6 June 2019 | Vienna | Austria | Wiener Stadthalle | — | — |
| 8 June 2019 | Mannheim | Germany | SAP Arena | — | — |
| 10 June 2019 | Dresden | Germany | Messehalle 1 | - | - |
| North America | North America | North America | North America | North America | North America |
| 11 September 2019 | San Francisco | United States | Chase Center | — | — |
| 13 September 2019 | Las Vegas | United States | T-Mobile Arena | — | — |
| 14 September 2019 | Phoenix | United States | Talking Stick Resort Arena | — | — |
| 20 September 2019 | Dallas | United States | American Airlines Center | - | - |
| 21 September 2019 | Dallas | United States | American Airlines Center | - | - |
| TOTAL | TOTAL | TOTAL | TOTAL | 72,350 / 72,350 (100%) | $8,712,387 |


Question
What span of days was the 2019 Eric Clapton World Tour in Tokyo for?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["The Eric Clapton World Tour 2019 was in Tokyo on 13 April 2019 through 20 April 2019."]