Detection: In hypernymy detection, the task is to classify whether pairs of words are in a hypernymy relation. Direction: In direction prediction, the task is to identify which term is broader in a given pair of words. Graded Entailment: In graded entailment, the task is to quantify the degree to which a hypernymy relation holds. 
 Question: What hypernymy tasks do they study?
Detection Direction Graded Entailment