query: SELECT email ,  phone FROM customers WHERE first_name = "Astrid" AND last_name = "Gruber";
question: What are emails and phone number Astrid Gruber customers?
query_toks: SELECT email , phone FROM customers WHERE first_name = `` Astrid '' AND last_name = `` Gruber '' ;
query_toks_no_value: select email , phone from customers where first_name = value and last_name = value
question_toks: What are emails and phone number Astrid Gruber customers?