Task: Text Completion
Input (English): Sentence1: I decided to add a new fountain pen to my collection. Sentence2: I'd seen online videos of a nice pen called a Pelikan M800. Sentence3: So I went to the pen shop at my local mall. Sentence4: The shop had just the model of pen I wanted. 
 (A) I bought the pen. (B) I didn't buy the pen.
Output (English): A