My father had an operation which lasted for hours.  We were all  
very worried but it was successful.
my father had an operation which lasted for hours  we were all  very worried but it was successful
[INST] In this task, you will be performing a classification exercise aimed at identifying the underlying emotion conveyed by a given sentence. The emotions to consider are as follows: Anger, Joy, Sadness, Guilt, Shame, Fear, or Disgust Sentence: My father had an operation which lasted for hours.  We were all  
very worried but it was successful. [/INST] joy