Complex sentence: Nicolaism (also Nicholaism, Nicolationism, or Nicolaitanism) is a Christian heresy whose adherents are called nicolaitans, nicolaitanes, or nicolaites.
Split into simpler sentences: Nicolaism (also Nicholaism, Nicolationism, or Nicolaitanism) is a Christian heresy. Heretics are called nicolaitans, nicolaitanes, or nicolaites.