What is the first name and last name of the customer that has email "luisg@embraer.com.br"?
return customers ;return #1 that  has  email luisg @ embraer.com.br ;return first name  of  #2 ;return last name  of  #2 ;return #3 ,  #4
['select', 'filter', 'project', 'project', 'union']