| Linguistic terms | Interval-valued trapezoidal fuzzy numbers |
| Absolutely poor, AP | [(0.0, 0.0, 0.0, 0.0; 0.5), (0.0, 0.0, 0.0, 0.0; 1.0)] | Very poor, VP | [(0.0075, 0.0075, 0.015, 0.0525; 0.5), (0.0, 0.0, 0.02, 0.07; 1.0)] | Poor, P | [(0.0875, 0.12, 0.16, 0.1825; 0.5), (0.04, 0.10, 0.18, 0.23; 1.0)] | Fairly poor, FP | [(0.2325, 0.255, 0.325, 0.3575; 0.5), (0.17, 0.22, 0.36, 0.42; 1.0)] | Medium, M | [(0.4025, 0.4525, 0.5375, 0.5676; 0.5), (0.32, 0.41, 0.58, 0.65; 1.0)] | Fairly satisfactory, FS | [(0.65, 0.6725, 0.7575, 0.79; 0.5), (0.58, 0.63, 0.80, 0.86; 1.0)] | Satisfactory, S | [(0.7825, 0.815, 0.885, 0.9075; 0.5), (0.72, 0.78, 0.92, 0.97; 1.0)] | Very impressive, VI | [(0.9475, 0.985, 0.9925, 0.9925; 0.5), (0.93, 0.98, 1.0, 1.0; 1.0)] | Absolutely impressive, AI | [(1.0, 1.0, 1.0, 1.0; 0.5), (1.0, 1.0, 1.0, 1.0; 1.0)] |
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