Letters that make counterexample
a, o, e, l, n, p, c, m, r, t, u, x are letters that make 'counterexample'
Words within counterexample
ER, AM, re, te, exam, NT, MP, UN, Rex, amp, ample, ex, counter, count, example, CO, Re, LE, Am, Co, Er, Te, AMP are words within 'counterexample'