Letters that make reinforcing stimulus
s, o, e, f, g, l, n, c, m, r, t, i, u are letters that make 'reinforcing stimulus'
Words within reinforcing stimulus
OR, rein, stimulus, info, re, ti, IMU, FO, mu, Ci, ng, ci, in, US, IN, Re, In, Lu, Ti are words within 'reinforcing stimulus'