Anchor: Formal screening protocols are needed because clinical judgment is unreliable and subject to bias.
Entailed: Clinical judgments can often be biased and unreliable.
Contradiction: Clinical judgments are usually more reliable than screening protocols.
Contradiction: This lady is currently playing the electric bass.
Contradiction: A few people in a racing competition.
Contradiction: I would just walk.
Contradiction: The hiker is outdoors.