In this task, you're given a context passage. Your job is to generate relevant questions that can be answered by directly referring to the passage.

As of May, 2010, the California Secretary of State reports that San Benito County has 34,562 eligible voters. Of those 24,736 (71.57%) are registered voters.  Of those, 11,959 (48.35%) are registered Democratic, 7,477 (30.23%) are registered Republican, 565 (2.28%)are registered American Independent, and 116 (0.47%) are Green Party.  The two incorporated municipalities of Hollister and San Juan Bautista have Democratic majorities on their voter rolls, whereas the unincorporated areas of San Benito County have a small Republican plurality in voter registration.
What four parties are listed?