Anchor: The reason appears to be that as efficiency technology penetrates the market and reduces carbon prices, more of a price signal is required to generate further reductions in the three conventional pollutants.
Entailed: Price signal's need to be increased in order to get reductions in pollutants.
Contradiction: Price signal's need to be decreased in order to get reductions in pollutants.
Contradiction: A man wore a skirt while playing the trumpet.
Contradiction: two men are outside
Contradiction: A woman is wearing strappy sandals.
Contradiction: I am less sure than you.