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A relation can have only one candidate key.
Heights
Elevated places or positions above a reference point, often associated with a fear or phobia when extreme.
Monkeys
Primates characterized by a tail, varied levels of social interaction, and often used in scientific research.
Post-Traumatic Stress Disorder
A mental health condition triggered by experiencing or witnessing a terrifying event, characterized by flashbacks, nightmares, and severe anxiety.
Generalised Anxiety Disorder
A mental health condition marked by persistent and excessive worry about various aspects of life, often to the point of interference with daily activities.
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