Table 3 Model Variations,,, q,V1V2U,Parameters, 1,0,?1 = ?, 2,100,?2 = ? + ?1, 3,10,?3 = ? + ?2, 4,1,?4 = ? + ?, 5,101,?5 = ? + ?1 + ?, 6,11,?6 = ? + ?2 + ?,