ship name in service project number type class comments
ship name
in service
project number
type
class
comments
number
text number text text text text
lenin 1959 92m icebreaker arktika decommissioned 1989. museum ship
what is the difference in years between the first ship put into service and the last ?
WP VBD-AUX DT NN IN NNS IN DT JJ NN VBD IN NN CC DT JJ .
48
select max ( c2_number ) - min ( c2_number ) from w