Direct clustering Drill dillz lethe lutrez Nill oon Wush \( M_{1} M_{2} M_{3} \quad M_{4} \quad M_{5} \quad M_{6} \quad M_{7} \) \( m_{6} m_{4} m_{2} m_{5} m_{3} \quad m_{1} \quad m_{7} \) \( \begin{a