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

Here are some examples:
Text:  Fifty 12-week-old male Sprague-Dawley rats, weighing 320–360g, were obtained from Guangdong Medical Laboratory Animal Center (Guangzhou, China) and randomly divided into two groups (25 rats/group): the intact group and the castration group. Random numbers were generated using the standard = RAND() function in Microsoft Excel.
{'C': 'Random Allocation Sequence Generation'}

Text: Measurements of the g-ratio were taken from randomly selected myelinated axons (minimum 50/animal) of TEM images at 12,000× magnification.
{'C': 'Unlabeled'}

Text: Animals were randomized after surviving the initial I/R, using a computer based random order generator.
{'C': 'Random Allocation Sequence Generation'}

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'}

Please classify this Passage:
Passage: Prior to the surgery, mice (N = 66) were anaesthetised (i.p.; fentanyl 0.05 mg/kg; midazolam 5 mg/kg; medetomidine 0.5 mg/kg) and, before any incision was made, the adequacy of anaesthesia was monitored by testing rear foot reflexes.