user
Instruction
Answer the question based on the provided table.


Table
Table Title: 'Club statistics' regarding 'Keita Isozaki'
Table Content:
| Club performance | Club performance | Club performance | League | League | Cup | Cup | League Cup | League Cup | Total | Total |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Season | Club | League | Apps | Goals | Apps | Goals | Apps | Goals | Apps | Goals |
| Japan | Japan | Japan | League | League | Emperor's Cup | Emperor's Cup | League Cup | League Cup | Total | Total |
| 1999 | Bellmare Hiratsuka | J1 League | 6 | 0 | 0 | 0 | 0 | 0 | 6 | 0 |
| 2000 | Shonan Bellmare | J2 League | 4 | 0 | 0 | 0 | 1 | 0 | 5 | 0 |
| 2001 | Mito HollyHock | J2 League | 25 | 0 | 0 | 0 | 2 | 0 | 27 | 0 |
| 2002 | Mito HollyHock | J2 League | 6 | 0 | 0 | 0 | - | - | 6 | 0 |
| 2003 | Mito HollyHock | J2 League | 17 | 0 | 1 | 0 | - | - | 18 | 0 |
| 2004 | Mito HollyHock | J2 League | 34 | 4 | 2 | 0 | - | - | 36 | 4 |
| 2005 | Vegalta Sendai | J2 League | 21 | 0 | 1 | 0 | - | - | 22 | 0 |
| 2006 | Vegalta Sendai | J2 League | 42 | 1 | 2 | 0 | - | - | 44 | 1 |
| 2007 | Vegalta Sendai | J2 League | 31 | 0 | 0 | 0 | - | - | 31 | 0 |
| 2008 | Vegalta Sendai | J2 League | 11 | 0 | 2 | 0 | - | - | 13 | 0 |
| 2009 | Sagan Tosu | J2 League | 35 | 0 | 2 | 0 | - | - | 37 | 0 |
| 2010 | Sagan Tosu | J2 League | 19 | 0 | 2 | 0 | - | - | 21 | 0 |
| 2011 | Sagan Tosu | J2 League | 35 | 0 | 0 | 0 | - | - | 35 | 0 |
| 2012 | Sagan Tosu | J1 League | 26 | 0 | 1 | 0 | 4 | 0 | 31 | 0 |
| 2013 | Sagan Tosu | J1 League | 9 | 0 | 4 | 0 | 4 | 0 | 17 | 0 |
| 2014 | Sagan Tosu | J1 League | 2 | 0 | 0 | 0 | 3 | 0 | 5 | 0 |
| 2015 | Sagan Tosu | J1 League | 2 | 0 | 0 | 0 | 3 | 0 | 5 | 0 |
| 2016 | Sagan Tosu | J1 League | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 |
| Career total | Career total | Career total | 325 | 5 | 17 | 0 | 18 | 0 | 360 | 5 |


Question
When and in which clubs did Keita Isozaki first join the J1 and J2 Leagues, respectively?


Answer Format
The final answer should be a sentence and use the following format:
```json
{
    "answer": "your_generated_sentence_here"
}
```
rule
["In 1999, Keita Isozaki joined J1 League club Bellmare Hiratsuka, and he later joined J2 league as a member of Shonan Bellmare in 2000."]