iec
world plugs
Type standard power
rating earthed polarised fused insulated
pins europlug
compatible
iec world plugs type1
standard
power rating
earthed
polarised
fused
insulated pins
europlug compatible
list length list_first list_second
list length
text <c,text(text)> <n,text> text text text text text
a nema 1-15 unpolarised 15 a/125 v no no no no no
what is the number of power rating for type a , b and c
WP VBD-AUX DT NN IN NN NN IN NN NN , NN CC NN
4
select count ( distinct c3 ) from w where c1 in ( 'a' , 'b' , 'c' )