import numpy as np
from scipy.cluster.hierarchy import fcluster, linkage


labels = np.array(
    [
        "web-1",
        "web-2",
        "web-3",
        "cache-1",
        "cache-2",
        "cache-3",
        "db-1",
        "db-2",
        "db-3",
    ]
)
observations = np.array(
    [
        [0.0, 0.1],
        [0.2, -0.1],
        [-0.2, 0.0],
        [0.1, 4.8],
        [-0.1, 5.1],
        [0.3, 5.0],
        [5.1, 4.9],
        [4.8, 5.2],
        [5.0, 5.1],
    ]
)