def count_words(test_string, word):
    for i in test_string:
        if i == word:
            yield i

test_string = "The big brown bear, was big enough to hide the big hut behind it"

word = "big"
count = 0
for j in count_words(test_string.split(), word):
    count = count + 1

print("The count is ", count)

# Coded By Dhiraj Shelke