title: Standard sql bigquery query fails
body: <p>Why does following standard sql BigQuery query fail: </p>
  
  <pre><code>query_job = db.query('INSERT IGNORE INTO feature_engineering.population VALUES 
  ( 688, 9, 28.0, 99, 99, 99, 99, 99, 99, 99, 99, 99, ((24.502362413708344 
  60.31927864851714) (24.502328274396916 60.321522364418435) (24.506852321471555 
  60.32153922011104) (24.506886150472955 60.31929550268306) (24.502362413708344 
  60.31927864851714)) )')
  </code></pre>
  
  <p>Error message is: "Exception: 400 Syntax error: Parenthesized expression cannot be parsed as an expression, struct constructor, or subquery at [1:112]"</p>