You will be given a definition of a task first, then some input of the task.
In this task, you will be given a passage to read. A fill in the blank question will be given to you.  Your answer should fit the blank appropriately.

 Erzherzog Ferdinand Max displaced 10 @,@ 472 long tons ( 10 @,@ 640 t ) . She was 414 feet 2 inches ( 126 @.@ 2 m ) long , had a beam of 71 feet 5 inches ( 21 @.@ 8 m ) and a draft of 24 feet 7 inches ( 7 @.@ 5 m ) . She was manned by 700 men . She and her sisters were the last and largest pre @-@ dreadnought class built by the Austro @-@ Hungarian Navy , surpassing the Habsburg class by approximately 2 @,@ 000 tonnes ( 1 @,@ 968 long tons ) . She was propelled by two two @-@ shaft , four cylinder vertical triple expansion steam engines . On trials , they developed 18 @,@ 000 ihp ( 13 @,@ 423 kW ) , which propelled the ship at a speed of 20 @.@ 5 knots ( 38 @.@ 0 km / h ; 23 @.@ 6 mph ) . Erzherzog Ferdinand Max carried a primary armament of four 24 @-@ centimeter ( 9 @.@ 4 in ) / 40 caliber guns in two twin turrets on the centerline . These guns were an Austro @-@ Hungarian replica of the British 24 cm / 40 ( 9 @.@ 4  ) Krupp C / 94 , which was used on the Habsburgs . Her secondary armament consisted of twelve 19 @-@ centimeter ( 7 @.@ 5 in ) / 42 caliber guns , also made by Škoda , mounted in eight single casemates on either wing of the ship and two twin turrets on the centerline. shell 20 @,@ 000 metres ( 22 @,@ 000 yd ) at maximum elevation with a muzzle velocity of 800 metres per second ( 2 @,@ 600 ft / s ) . The gun weighed 12 @.@ 1 tons and could fire three rounds per minute.The ships had a tertiary armament for protection against torpedo boats in the form of the 6 @.@ 6 centimetres ( 2 @.@ 6 in ) / 45 caliber gun , also manufactured by Škoda . Anti @-@ aircraft and airship protection was covered by the four 37 @-@ millimeter ( 1 @.@ 5 in ) Vickers anti @-@ aircraft guns on the ship bought from Britain in 1910 and mounted onto Erzherzog Karl . Erzherzog Ferdinand Max was also fitted with two above water 45 @-@ centimeter ( 17 @.@ 7 in ) torpedo tubes , although rarely used .fill in the blank  :  Erzherzog Ferdinand Max displaced __________________ @,@ 472 long tons ( __________________ @,@ 640 t ) . 
Output:
 10 