Table 5: The forty-nine fuzzy rules of the fourth fuzzy subset (S4).

CE
NBNMNSZEPSPMPB

NBZEZEZENBNBNBNB
NMZEZEZENMNMNMNM
NSNSZEZENSNSNSNS
ZENMNSZEZEZEPSPM
PSPMPSPSPSZEZEZE
PMPMPMPMZEZEZEZE
PBPBPBPBZEZEZEZE