def count_words(text):
    words = text.lower().split()
    word_count = {}
    
    for word in words:
        word = word.strip('.,!?')
        if word in word_count:
            word_count[word] =  word_count[word] + 1
        else:
            word_count[word] = 1
    
    return word_count

def find_most_common(word_count):
    most_common = None
    max_count = 0
    
    for word, count in word_count.items():
        if count > max_count:
            most_common = word
            max_count = count
    
    return most_common, max_count

text = "Hello world hello there world hello"
counts = count_words(text)
common_word, frequency = find_most_common(counts)

print(f"Text: {text}")
print(f"Word counts: {counts}")
print(f"Most common: '{common_word}' appears {frequency} times")