| Linguistic variables and semantics | Trapezoidal fuzzy numbers |
| g0 = very unsatisfied (VU) | (0, 0, 0.077, 0.154) | g1 = unsatisfied (U) | (0.077, 0.154, 0.231, 0.308) | g2 = slightly unsatisfied (SU) | (0.231, 0.308, 0.385, 0.462) | g3 = middle (M) | (0.385, 0.462, 0.538, 0.615) | g4 = slightly satisfied (SS) | (0.538, 0.615, 0.692, 0.769) | g5 = satisfied (S) | (0.692, 0.769, 0.846, 0.923) | g6 = very satisfied (VS) | (0.846, 0.923, 1, 1) |
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