import sys
import math
from collections import defaultdict

# Auto-generated code below aims at helping you parse
# the standard input according to the problem statement.

# nb_floors: number of floors
# width: width of the area
# nb_rounds: maximum number of rounds
# exit_floor: floor on which the exit is found
# exit_pos: position of the exit on its floor
# nb_total_clones: number of generated clones
# nb_additional_elevators: ignore (always zero)
# nb_elevators: number of elevators
nb_floors, width, nb_rounds, exit_floor, exit_pos, nb_total_clones, nb_additional_elevators, nb_elevators = [int(i) for
                                                                                                             i in
                                                                                                             input().split()]
elevators = defaultdict(int)
for i in range(nb_elevators):
    # elevator_floor: floor on which this elevator is found
    # elevator_pos: position of the elevator on its floor
    elevator_floor, elevator_pos = [int(j) for j in input().split()]
    elevators[elevator_floor] = elevator_pos

print(elevators, file=sys.stderr)
# game loop
while True:
    # clone_floor: floor of the leading clone
    # clone_pos: position of the leading clone on its floor
    # direction: direction of the leading clone: LEFT or RIGHT
    clone_floor, clone_pos, direction = input().split()
    clone_floor = int(clone_floor)
    clone_pos = int(clone_pos)

    action = "WAIT"

    if clone_pos == width - 1 or clone_pos == 0:
        action = 'BLOCK'
    elif clone_floor == exit_floor:
        if clone_pos > exit_pos and direction == 'RIGHT':
            action = 'BLOCK'
        elif clone_pos < exit_pos and direction == 'LEFT':
            action = 'BLOCK'
    elif clone_pos > elevators[clone_floor] and direction == 'RIGHT':
        action = 'BLOCK'
    elif clone_pos < elevators[clone_floor] and direction == 'LEFT':
        action = 'BLOCK'

    print(action)

    # Write an action using print
    # To debug: print("Debug messages...", file=sys.stderr)

    # action: WAIT or BLOCK