def get_seq_start(pose):
    """
        Function that extracts the first (x,y)
        point from a list of 6D poses.

        Parameters
        ----------
            pose : nd.array
                List of 6D poses.

        Returns
        -------
            x_start : float
                Start x point.
            y_start : float
                Start y point
    """
    x_start = pose[0][3]
    y_start = pose[0][5]

    return x_start, y_start