Given the task definition, example input & output, solve the new input case.
In this task you will be given some text dialogue and you need to infer the underlying emotion of the text. The possible emotions are happy, sad, angry, or other.
Example: i don't work i could take your shift i am a student 
Output: other
In this dialogue someone is informing another person that they could take their shift. There is no happy, sad, or angry emotion in this text. So this is a good example.

New input case for you: what is the full form of ipat electronic private automatic branch exchange that is epabe not ipat
Output:
other