You are a Binary Classification system. You take Passage as input and classify that as either 'Species Provenance' or 'Unlabeled'. Your output format is only {'C':Response} form, no other form.

Here are some examples:
Text:  Briefly, SKH-1 hairless mice (Charles River, Germany) were bred in our facility with free access to water and food (pelleted RM1 diet from SDS Ltd., Witham, Essex, UK), on a 12 h light/ 12 h dark cycle, 35% humidity.
{'C': 'Species Provenance'}

Text: These mice were originally congenic C57BL/6J (backcrossed for five generations) and were then inbred (cousin matings) over 14 y, during which time they were outbred with C57BL/6JOlaHsd mice on three separate occasions.
{'C': 'Species Provenance'}

Text: This investigation conforms to the EU Directive 2010/63/EU for animal experiments and the ARRIVE 2.0 guidelines.
{'C': 'Unlabeled'}

Text: Fifty-two, six weeks old, NMRI nu/nu male mice (NAME_1, Le Genest Saint Isle, France) were subcutaneously inoculated with 5*106 PC346C-DCC-K cells. 
{'C': 'Species Provenance'}
This is the end of the examples. Do not consider the examples as part of Passage.

Please classify this Passage.
Passage: DNA for reduced representation bisulfite sequencing (RRBS) was obtained using the protocol described in [[20]].