rank group name nationality 2.05 2.15 2.19 2.23 2.26 result notes
rank
group
name
nationality
2.05
2.15
2.19
2.23
2.26
result
notes
number
number text text text text text text text text text text
1 a nicola ciotti italy o o o o o 2.26 q
what is the number of nationalities listed in the table ?
WP VBD-AUX DT NN IN NNS VBN IN DT NN .
14
select count ( distinct c4 ) from w