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+## nenokku
+
+### Instructions
+
+You are given unknown amount of operations. There are 3 types of operations, you should handle each appropriately:
+1. "A word" - add the "word" into your "dictionary" of words.
+2. "? word" - check if the "word" is in your "dictionary".
+3. "x word" - end of operations.
+
+Intersection of words is counted as if it is in your dictionary (see example).
+Write a program that takes as arguments operations.
+
+```console
+$> ./main "? love" "? is" "A loveis" "? love" "? Who" "A Whoareyou" "? is"
+NO
+NO
+YES
+NO
+YES
+```
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