Input:
Are these paraphrases?
The chiral centers in Pumiliotoxin 251D can produce several stereoisomers of the compound : only one form of toxin is present in nature and has toxic properties .
The chiral centers in pumiliotoxin 251D can give toxic stereoisomers of the compound . Only one form of the toxin is present in nature and has several properties .
Output:
[no]

Input:
Are these paraphrases?
A quantum fluid refers to each system that shows quantum mechanical effects at the macroscopic level , such as superfluids , superconductors , ultracold atoms , etc .
A quantum fluid refers to any system that exhibits quantum mechanical effects at the macroscopic level such as superfluids , superconductors , ultracold atoms , etc .
Output:
[yes]

Input:
Are these paraphrases?
Users can upload written entries similar to a standard personal journal and can also create photos from their devices .
Users can create written entries similar to a personal standard journal and also upload photos from their devices .
Output:
[no]