Anchor: Yes, said Tuppence, but there was a lack of assurance in her voice.
Entailed: Tuppence is not confident about her answer. 
Contradiction: Tuppence is positive that the answer is yes.
Contradiction: A woman is sitting on the front porch
Contradiction: First you put the cauliflower in the microwave, wash it, then core it.
Contradiction: A boy is riding a bike.
Contradiction: The volleyball got spiked.