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

Here are some examples:
Text: Bulls were blocked by BW into four blocks of 905 animals with similar BW and then within each block, bulls were randomly assigned to one of four experimental treatments in a completely randomized block design resulting in 905 animals per treatment. 
{'C': 'Randomisation Strategy'}

Text: Test time was between 08.30am to 12.30pm and testing order was randomized daily, with each animal tested at a different time each test day.
{'C': 'Randomisation Strategy'}

Text: Snap frozen organs were separately disrupted and homogenised by the Polytron Dispersing Aggregates (Kinematica) in the presence of QIAzol Lysis Reagent (Qiagen).
{'C': 'Unlabeled'}

Text:  On arrival from El-Nile Company, animals were assigned a group designation and weighed. A total number of 32 animals were divided into four different weight groups (eight animals per group). Each animal was assigned a temporary random number within the weight range group. On the basis of their position on the rack, cages were given a numerical designation. For each group, a cage was selected randomly from the pool of all cages. Two animals were removed from each weight range group and given their permanent numerical designation in the cages. Then, the cages were randomized within the exposure group.
{'C': 'Randomisation Strategy'}

Text: NAME_1's exact test was utilised to determine the existence of non-random associations between the dichotomous values of patients compared with controls.
{'C': 'Unlabeled'}
This is the end of the examples. Do not consider the examples as part of Passage.

Please classify this Passage. 
Passage: For animal data, we performed a cosinor analysis, based on NAME_2 et al.15 by adjusting a macro provided by NAME_3 et al.16 to determine rhythmicity of delta Ct values.  Provide your reponse without using the word format.
user