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.
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Question: Context: 15 campers went rowing in the morning. Some more campers went rowing in the afternoon. If a total of 32 campers went rowing that day 

 Question: How many campers went rowing in the afternoon?

Answer: 17


Question: Context: Jack received 10 emails in the morning, 5 emails in the afternoon and 4 emails in the evening. 

 Question: How many more emails did Jack receive in the afternoon than in the evening?

Answer: 1


Question: Context: 2 birds and 6 storks were sitting on the fence. 3 more birds came to join them. 

 Question: How many more storks than birds are sitting on the fence?

Answer:
1