Letters that make relativity theory
a, o, e, l, h, r, t, i, v, y are letters that make 'relativity theory'
Words within relativity theory
el, OR, relativity, lat, theory, IT, he, re, la, ti, ELA, He, at, EL, iv, vi, IV, VI, LA, Re, At, La, Th, Ti are words within 'relativity theory'