query: What this trick is?
positive_passages.docid: 19993
positive_passages.text: C preprocessor # and ## operators
negative_passages.docid: 97044
negative_passages.text: What is the name of this effect, and what is a good way to replicate it?
negative_passages.docid: 30814
negative_passages.text: How is "Can anyone tell me how can I solve this" wrong?
negative_passages.docid: 752
negative_passages.text: Can you help me identify this "thing"?
negative_passages.docid: 28710
negative_passages.text: Top Down RPG Movement w/ Correction?
negative_passages.docid: 19976
negative_passages.text: Riddle (simple arithmetic problem/illusion)
negative_passages.docid: 97770
negative_passages.text: Sphere rolling up a step
negative_passages.docid: 73298
negative_passages.text: Explanation of  ...
negative_passages.docid: 20488
negative_passages.text: May you please explain this?
negative_passages.docid: 66371
negative_passages.text: What is it called when reversing a phrase doesn't mean the same as the original phrase?
negative_passages.docid: 1084
negative_passages.text: What is this type of question called?
negative_passages.docid: 74765
negative_passages.text: What is the Purpose of a "Ducking" Play In Bridge?
negative_passages.docid: 93370
negative_passages.text: Showcase of brace tricks: }, \egroup, \iffalse{\fi}, etc.
negative_passages.docid: 76352
negative_passages.text: Physics behind a match performing a trick on center of mass
negative_passages.docid: 23933
negative_passages.text: Ice skating, how does it really work?
negative_passages.docid: 45902
negative_passages.text: Which of these situations are a catch?
negative_passages.docid: 61029
negative_passages.text: Is there a way to do an "upside down" \widehat?