| A1 | A2 | … | Am |
O1 | R11 (t11, i11, f11, l11) | R12 (t12, i12, f12, l12) | … | R1m (t1m, i1m, f1m, l1m) |
O2 | R21 (t21, i21, f21, l21) | R22 (t22, i22, f22, l22) | … | R23 (t2m, i2m, f2m, l2m) |
… |
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On | Rn1 (tn1, in1, fn1, ln1) | Rn2 (tn2, in2, fn2, ln2) | … | Rnm (tnm, inm, fnm, lnm) |