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+# Task 2: Most Frequent Word
+# Submitted by: Mohammad Sajid Anwar
+# 
+# You are given a paragraph $p and a banned word $w.
+# Write a script to return the most frequent word that is not banned.
+# 
+# Example 1
+# Input: $p = "Joe hit a ball, the hit ball flew far after it was hit."
+#        $w = "hit"
+# Output: "ball"
+# 
+# The banned word "hit" occurs 3 times.
+# The other word "ball" occurs 2 times.
+# 
+# Example 2
+# Input: $p = "Perl and Raku belong to the same family. Perl is the most popular language in the weekly challenge."
+#        $w = "the"
+# Output: "Perl"
+# 
+# The banned word "the" occurs 3 times.
+# The other word "Perl" occurs 2 times.
+
+def count(w, dictionary):
+    if w in dictionary:
+        dictionary[w] += 1
+    else:
+        dictionary.update({w: 1})
+
+def banned_word(paragraph, banned):
+    paragraph = filter(lambda x: x.isalnum() or x.isspace(), paragraph)
+    paragraph = "".join(paragraph)
+
+    dictionary = {}
+    lst = paragraph.split()
+
+    for w in lst:
+        if w != banned:
+            count(w, dictionary)
+
+    print(max(dictionary, key=dictionary.get))
+
+if __name__ == "__main__":
+    paragraph = "Joe hit a ball, the hit ball flew far after it was hit."
+    banned = "hit"
+    banned_word(paragraph, banned)
+
+    paragraph = "Perl and Raku belong to the same family. Perl is the most popular language in the weekly challenge."
+    banned = "the"
+    banned_word(paragraph, banned)