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Second technique of data representation and its label.
| Token-1 | Token-2 | Token-3 | Token-4 | Token-5 | Label |
|---|---|---|---|---|---|
| “modification” | “of” | “surface” | “histidine” | “residues” | 1 |
| “of” | “surface” | “histidine” | “residues” | “abolishes” | 1 |
| surface | histidine | residues | abolishes | the | 1 |
| “histidine” | “residues” | “abolishes” | “the” | “cytotoxic” | 1 |
| “the” | “cytotoxic” | “activity” | “of” | “clostridium” | 1 |
| “clostridium” | “difficile” | “toxin” | “a” | “∗” | 5 |
| “difficile” | “toxin” | “a” | “∗” | “∗” | 1 |
| “a” | “atoxin” | “∗” | “∗” | “∗” | 1 |
| “toxic” | “∗” | “∗” | “∗” | “∗” | 1 |
