def validate_seed(vocabulary, seed):
    """Validate that all the words in the seed are part of the vocabulary"""
    print("\nValidating that all the words in the seed are part of the vocabulary: ")
    seed_words = seed.split(" ")
    valid = True
    for w in seed_words:
        print(w, end="")
        if w in vocabulary:
            print(" ✓ in vocabulary")
        else:
            print(" ✗ NOT in vocabulary")
            valid = False
    return valid