number builder type date works number notes
number
builder
type
date
works number
notes
minimum_number minimum_parsed minimum_year maximum_number maximum_parsed maximum_year
number
text text text timespan number text
51 baldwin locomotive works ds4-4-750 1949 74408 acquired new 1949, retired 1970/wrecked-scrapped
how many different types of diesel locomotives are dated after 1980 ?
WRB JJ JJ NNS IN NN NNS VBD-AUX VBN IN CD .
2
select count ( c1 ) from w where c4_minimum_year > 1980