The boat has two large masts .
It is impossible that the sail boat does n't need it 's two large masts in order to move quickly .
It is impossible that the sail boat does n't need it 's two large masts in order to move quickly .
It is certain that the sail boat does n't need it 's two large masts in order to move quickly .
The sail boat does n't need it 's two large masts in order to move quickly .