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Table 2
Sample subpopulation classes.
| Designation criterion | Class | Number |
|
|
||
| Optical spectrum | BL Lac | 220 |
| BL Lac cand. | 43 | |
| Blazar un.type | 36 | |
| FSRQ | 7 | |
|
|
||
| Selection method | RBL | 248 |
| XBL | 56 | |
| OBL | 2 | |
|
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||
| SED type | LSP | 141 |
| ISP | 102 | |
| HSP | 63 | |
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