create implication gradient_sky (189) -> sky (123372)
create implication multicolored_sky (105) -> sky (123372)
create implication two_tone_sky (22) -> multicolored_sky (105)
create implication clear_sky (311) -> sky (123372)
create implication cloudy_sky (745) -> cloud (76600)
create implication cloudy_sky (745) -> sky (123372)
create implication overcast (606) -> cloud (76600)