question_subject:
Science
question_exam:
IES
stats:
0,46,15,46,9,4,2
keywords:
{'digestive system': [0, 0, 0, 2], 'excretory system': [0, 0, 0, 1], 'human body': [40, 2, 44, 29], 'respiratory system': [1, 0, 0, 1], 'reproductive system': [0, 0, 2, 1]}