Text: And there have been some attempts to build political portals, such as PoliticsOnline.com . But while such sites do a good job of making recent articles and broad-based resources available, they've yet to combine the Net's strongest attributes--searchability and multiple information sources--with political sophistication.
Entailment: PoliticsOnline.com was one of the political portals that they attempted to build.
Contradiction: There have been no attempts to establish online political portals.