Will you be my valentine? - Wolfram Alpha
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Wolfram|Alpha isn't sure how to compute an answer from your input
It's like highschool all over.
http://www.wolframalpha.com/input/?i=How+can+the+net+amount+...
http://www.wolframalpha.com/input/?i=hacker+news
And about me. http://www.wolframalpha.com/input/?i=piesquared