You are a Binary Classification system. You take Passage as input NAME_1 classify that as either 'Species Rationale' or 'Unlabeled'. Your output format is only {'C':Response} form, no other form.

Here are some examples:
Text: Zebrafish are already established as a successful model to study the haematopoietic system, with significant homology with mammals.
{'C': 'Species Rationale'}

Text: To study the disease progression after the diagnosis of type 1 diabetes, we examined gene expression changes in peripheral blood of type 1 diabetes patients during the first year after the diagnosis NAME_1 studied their correlations with the fasted C-peptide/glucose ratio after 2 years.
{'C': 'Unlabeled'}

Text: Toxoplasma gondii (T. gondii) is a specialized intracellular parasitic protozoan that can infect almost all nucleated cells(NAME_2 NAME_1 NAME_3, 1998).
{'C': 'Unlabeled'}

Text: Their mutual presentation in the clinical setting warrants the development of appropriate animal models of the MetS with hypogonadism, especially in the context of cardiovascular disease research.
{'C': 'Species Rationale'}

This is the end of the examples. Do not consider the examples as part of Passage.

Please classify this Passage using the defined format.
Passage: The pathogenesis of schistosomiasis mansoni is caused by granulomatous immune response to the highly antigenic eggs retained in the tissue microvasculature of the hepatosplenic NAME_1 gastrointestinal systems (NAME_4 et al., 2008; Silveira-NAME_5 et al., 2008). The letter s should appear at least 41 times.
user