fix parsing import remove_prefix

bionlp_st_2019_bb.py

@@ -22,6 +22,7 @@ from .bigbiohub import kb_features
 from .bigbiohub import BigBioConfig
 from .bigbiohub import Tasks
 from .bigbiohub import brat_parse_to_bigbio_kb
+from .bigbiohub import remove_prefix
 
 
 _DATASETNAME = "bionlp_st_2019_bb"
@@ -473,7 +474,7 @@ class bionlp_st_2019_bb(datasets.GeneratorBasedBuilder):
                 if ann["type"] in ["Title", "Paragraph"]:
                     continue
                 ann["offsets"] = []
-                span_str = parsing.remove_prefix(fields[1], (ann["type"] + " "))
+                span_str = remove_prefix(fields[1], (ann["type"] + " "))
                 text = fields[2]
                 for span in span_str.split(";"):
                     start, end = span.split()