Anchor: However, CO2 has never been regulated as a pollutant under the Clean Air Act and does not pose any direct threat to human health unlike NOx, SO2 and mercury.
Entailed: CO2 has never been regulated as a pollutant under the Clean Air Act.
Contradiction: CO2 has been regulated as a pollutant under the Clean Air Act.
Contradiction: We met with ten members of the Federal Small Agency CIO Council.
Contradiction: Woman taking a picture
Contradiction: Flanders' criminal trial.
Contradiction: The best fresco cycles are in the church.