Teacher:You are given a math word problem and you are supposed to only use subtraction on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
Teacher: Now, understand the problem? Solve this instance: Context: Jack received 3 emails in the afternoon, 5 emails in the morning and 16 emails in the evening.

Question: How many more emails did Jack receive in the morning than in the afternoon?
Student:
2