issue volume title main feature story first/early appearance story/stories release date
issue
volume
title
main feature story
first\\/early appearance story\\/stories
release date
number
number
number parsed year month day
number number text text text date
1 24 the avengers ultron unlimited (avengers vol 3 #0 and #19-22) the coming of the avengers (avengers vol 1 #1) 27 dec 2013
how many release dates were in april ?
WRB JJ NN NNS VBD-AUX IN NNP .
2
select count ( c6 ) from w where c6_month = 4