(ap) Hillary Rodham Clinton had far greater name recognition than Barack Obama in Puerto Rico, giving her a big advantage in the Democratic presidential primary Sunday, according to a poll for The Associated Press and television networks. The survey also found that — unlike in recent primaries on the U.S. mainland — neither side's voters had a particularly harsh view of the other candidate. Overall, Clinton got 65 percent and Obama 35 percent among likely Democratic primary voters who expressed a preference for a candidate in a telephone poll conducted Tuesday through Saturday by Princeton Survey Research Associates International. That sample of 1,587 likely voters had a margin of sampling error of plus or minus 3.1 percentage points. Fully one-third, or 34 percent, of likely voters said they hadn't heard enough about Obama to express an opinion about him. Only 16 percent said that about Clinton, the former first lady and current U.S. senator from New York, a state with many Puerto Ricans. Only one in five Obama backers viewed Clinton unfavorably and one in seven Clinton supporters gave Obama an unfavorable rating. In exit polling in recent Democratic primaries on the mainland, far greater numbers of voters on each side said they'd be dissatisfied if the other candidate won the Democratic nomination. Only 38 percent of registered voters in Puerto Rico said they were following the campaign very closely and 30 percent said they were following it somewhat closely. The poll indicated turnout Sunday would be much lower than usual in Puerto Rico, which typically sees turnout rates in excess of 70 percent of registered voters.