code: def partial_context(cls, doc, option):
      # Substitute the pronoun in the sentence with the specified option
      # and ignore everything after.
      pronoun_loc = doc["sentence"].index("_")
      return doc["sentence"][:pronoun_loc] + option
  
imports: import numpy
  from lm_eval.base import rf, Task
  from lm_eval.metrics import mean
label_desc: Use image node_id 9 for calling the Winogrande obj's underlying member method code with example usage: obj.partial_context(cls, doc, option) and returns: unknown