🟨 Yellow — Easiest
PULL USING FORCE
RIP, TEAR, WRENCH, YANK
🟩 Green
BIT OF REPETITIVE TRAINING
DRILL, EXERCISE, PRACTICE, ROUTINE
🟦 Blue
U.S.-BASED AIRLINES
AMERICAN, FRONTIER, SPIRIT, UNITED
🟪 Purple — Hardest
BEGINNING WITH DAY ABBREVIATIONS
FRIAR, MONKEY, SUNDRY, WEDDING