TASK DEFINITION: Given a pair of words, deduce the type of relationship between them. The various types of relations are: 'HYPER', 'COORD' and 'RANDOM'. Let's denote the first word by X and the second word by Y. A COORD relationship holds when X and Y belong to the same semantic class. A HYPER relationship applies when X is a specific instance of Y. If niether COORD nor HYPER are applicable then the relationship is RANDOM.
PROBLEM: X: invalid, Y: illegal

SOLUTION: HYPER

PROBLEM: X: mantle, Y: correct

SOLUTION: RANDOM

PROBLEM: X: pheasant, Y: address

SOLUTION:
RANDOM