name(s) yard no. type (as built) owner imo number laid down launched delivered/
commissioned fate/
decommissioned notes
name -lrb- s -rrb-
yard no .
type -lrb- as built -rrb-
owner
imo number
laid down
launched
delivered \\/ commissioned
fate \\/ decommissioned
notes
first second
number
number parsed year month day
number parsed year month day
number parsed year month day
number parsed year month day
text(text) number text text number date date date date text
uss lawrence (dd-8) 100 yacht lyman 10 april 1899 7 november 1900 7 april 1903 20 june 1919 sold to joseph g. hitner; scrapped
tell me the total number that were laid down on an unknown date .
VB PRP DT JJ NN WDT VBD-AUX VBN RP IN DT JJ NN .
5
Keyword Keyword Keyword Keyword Keyword Keyword Keyword Keyword Column Keyword Keyword
select count ( * ) from w where c6 is null
None None None Keyword Keyword None None Column Column None Keyword Keyword Keyword None
['agg', 'agg_count'] ['agg', 'agg_count'] c6 c6 ['null', 'null_null'] ['null', 'null_null'] ['null', 'null_null']