Cause-effect span detection for causal sequences:

label_to_id = {'B-C': 0, 'B-E': 1, 'I-C': 2, 'I-E': 3, 'O': 4}

• LABEL_0 = B-C
• LABEL_1 = B-E
• LABEL_2 = I-C
• LABEL_3 = I-E
• LABEL_4 = O

Trained on multiple datasets.