Anchor: By 2020 total energy use fell by 19% compared to the reference case.
Entailed: By 2020 total energy use fell by 19% compared to the reference case.
Contradiction: The total energy use fell by 100% by 2020, compared to the reference case. 
Contradiction: the girl is frowning
Contradiction: A musician plays a song.
Contradiction: Two guys get ready to take a bath.
Contradiction: Over time the catalyst in coal-fired units would have to be replenished.