t: 'Nu', color: 'orange' },
      { key: 'Nu', next: 'Xi', color: 'coral' },
      { key: 'Xi', next: 'Omicron', color: 'tomato' },
      { key: 'Omicron', next: 'Pi', color: 'goldenrod' },
      { key: 'Pi', next: 'Rho', color: 'orange' },
      { key: 'Rho', next: 'Sigma', color: 'coral' },
      { key: 'Sigma', next: 'Tau', color: 'tomato' },
      { key: 'Tau', next: 'Upsilon', color: 'goldenrod' },
      { key: 'Upsilon', next: 'Phi', color: 'orange' },
      { key: 'Phi', next: 'Chi', color: 'coral' }