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 in service of the taymyr and the arktika ?
WP VBD-AUX DT NN IN NNS IN NN IN DT NN CC DT NNP .
14
select ( select c2_number from w where c1 = 'taymyr' ) - ( select c2_number from w where c1 = 'arktika' )