
BORE - first ship
-> BORE I -> HEBE -> BORE I

BORE (2)
-> BOREA -> KRISTINA REGINA

BORE I (3)
-> SKANDIA (2)

BORE II (4)
-> SILJA II
-> BORE I -> HEBE -> BORE I
-> BOREA -> KRISTINA REGINA
-> SKANDIA (2)
-> SILJA II