song artist(s) concert film 1978 album 2002 album
song
artist -lrb- s -rrb-
concert
film
1978 album
2002 album
list length
number
number
number
number
text <ca,text> number number number number
"up on cripple creek" the band 1 3 2 2
how many songs did joni mitchell perform ?
WRB JJ NNS VBD-AUX NNP NNP VB .
4
select count ( c1 ) from w where c2_list = 'joni mitchell'