None (82 words)
direction, matter, perhaps, syllables, test, Europe, anything, center, divided, energy, farmers, general, moon, ready, subject, believe, cells, dance, members, mind, paint, picked, return, blue, developed, drop, eggs, exercise, train, wish, difference, forest, heart, probably, sit, sum, summer, wall, window, interest, kept, legs, length, main, wide, winter, written, arms, brother, edge, job, past, sign, beside, discovered, finished, glass, gone, happy, million, sky, wild, instruments, meet, months, paragraph, raised, root, third, weather, west, clothes, describe, drive, flowers, represent, shall, soft, teacher, whether, appear, cross
Once (18 words)
felt, square, suddenly, region, simple, cause, love, rain, distant, reason, sat, beautiful, present, race, store, record, lay, held