Table: grand_prix_results_4
Columns: round
date
grand_prix
circuit
motogp_winner
moto2_winner
moto3_winner
report

Question: Name the total number of moto2 winners for laguna seca
SQL: SELECT COUNT("moto2_winner") FROM grand_prix_results_4 WHERE "circuit" = 'Laguna Seca'

Question: Name the circuit for hertz british grand prix
SQL: SELECT "circuit" FROM grand_prix_results_4 WHERE "grand_prix" = 'Hertz British Grand Prix'

Question: Name the number of rounds for brno
SQL: SELECT COUNT("round") FROM grand_prix_results_4 WHERE "circuit" = 'Brno'

Question: Name the motogp winner for 6 may
SQL: SELECT "motogp_winner" FROM grand_prix_results_4 WHERE "date" = '6 May'