Given the task definition, example input & output, solve the new input case.
In this task, you're given a short article. Your job is to classify the article based on its category. Use the following classification labels, 0. World, 1. Sports, 2. Business, 3. Science or Technical. Label the text "0" if it contains information related to world. Label the text "1" if it contains information related to sports. Label the text "2" if it contains information related business. Label the text "3" if it contains science or technical related information. 
Example: The Race is On: Second Private Team Sets Launch Date for Human Spaceflight (SPACE.com) SPACE.com - TORONTO, Canada -- A second team of rocketeers competing for the  #36;10 million Ansari X Prize, a contest for privately funded suborbital space flight, has officially announced the first launch date for its manned rocket.
Output: 3
This statement indicates that it is related to space which is in fact related to science. This is a positive example because the label correctly classifies the statement as science. 

New input case for you: Dozen costs, dozen eggs cost The word dozen is similar to the words hundred, thousand and million. On their own, they are nouns, whose plural forms are the same as their singular forms (eg a dozen, two 
Output:
3