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:
| Model | Length Over All | Beam | Sail Area | Crew | Comments |
| --- | --- | --- | --- | --- | --- |
| 14sq | 4.5m | 2.44 | 14m² | 1 | Daggerboards |
| 4.5 | 4.50 m | 2.44 m | 17.5 m² | 1-2 | Skegs |
| 460 | 4.50 m | 2.35 m | 15.2 m² | 1-2 | Skegs |
| Blast | 4.80 m | 2.45 m | 15.6 m² | 1-2 | Skegs. Design: Alain Comyn |
| 16sq | 5.0m | 2.5m | 16 m² | 1 | Daggerboards |
| 5.0 | 5.0 m | 2.44 m | 19 m² | 2 | Skegs. Design: Roy Seaman |
| 500 | 5.0 m | 2.44 m | 17.6 m² | 1-2 | Skegs |
| 5.2 | 5.2 m | 2.44 m | 20.43 m² | 2 | Daggerboards |
| F17 | 5.20 m | 2.44 m | 15.25 m² | 1 | Daggerboards |
| Nacra 17 | 5.25 m | 2.59 m | 18.25 m² | 2 | curved Daggerboards. Design: Morelli und Melvin |
| 18sq | 5.48m | 3.35 m | 18m² | 1 | Daggerboards |
| F18 Inter 18 | 5.52 m | 2.6 m | 20.45 / 21.15 m² | 2 | F18 class boat. Design: Morelli und Melvin |
| F18 Inter 2 | 5.52 m | 2.6 m | 20.45 / 21.15 m² | 2 | F18 class boat. Design: Alain Comyn |
| F18 Infusion | 5.52 m | 2.6 m | 20.45 / 21.15 m² | 2 | F18 class boat. Design: Morelli und Melvin |
| 5.7 | 5.67 m | 2.44 m | 21.3 m² | 2 | Skegs |
| 570 | 5.65 m | 2.44 m | 21.1 m² | 2 | Skegs |
| 5.8 | 5.8 m | 2.5 m | 22.8 m² | 2 | Daggerboards. Design: Roy Seaman |
| 580 | 5.8 m | 2.44 m | 22.1 m² | 2 | Daggerboards |
| 6.0 | 6.10 m | 2.59 m | 24.5 m² | 2 | Daggerboards |
| N20 | 6.12 m | 2.6 m | 20.45 / 24.9 m² | 2 | Formula 20 class boat |
Question:
Which Crew has Comments of daggerboards. design: roy seaman?
Answer:
2.0