sister ship subgroup of ship, 12 assertions
CapableOf 3
enter service 0.59
set sail 0.31
join the fleet 0.31
HasProperty 1
fast 0.16
ReceivesAction 8
built 0.68
launched 0.39
launched in 2011 0.35
delivered 0.31
completed 0.25
launched in november 0.25
created in response 0.25
sunk 0.16