Letters that make philosophers' wool
s, o, e, l, p, h, r, i, w are letters that make 'philosophers' wool'
Words within philosophers' wool
ER, os, OS, hi, he, sop, ILO, philosopher, He, phi, woo, soph, pH, il, so, SOP, wool, HI, Hilo, IL, Er, Os are words within 'philosophers' wool'