type gauge railway works no. year builder
type
gauge
railway
works no .
year
builder
number
address
number minimum maximum
minimum_number minimum_parsed minimum_year maximum_number maximum_parsed maximum_year
address
text unitnum address numberspan timespan address
0-4-0+0-4-0 500 mm southern fuegian railway, argentina 1708-1709 1994 argentina
how many years apart were the two garratts on the southern fuegian railway produced ?
WRB JJ NNS RB VBD-AUX DT CD NNS IN DT JJ JJ NN VBN .
12
select max ( c5_maximum_year ) - min ( c5_minimum_year ) from w where c3_address = 'southern fuegian railway'