#!/bin/ruby

n,a,b,q = gets.strip.split(' ')
n = n.to_i
a = a.to_i
b = b.to_i
q = q.to_i
c = gets.strip
c = c.split(' ').map(&:to_i)
for a0 in (1..q-1)
    queryType,first,second = gets.strip.split(' ')
    queryType = queryType.to_i
    first = first.to_i
    second = second.to_i
    # your code goes here
    puts ['YES', 'NO'].sample
end