question_subject:
Maths
question_exam:
IAS
stats:
0,2,10,4,2,4,2
keywords:
{'policeman': [0, 1, 0, 0], 'minutes': [0, 0, 1, 1], 'thief': [0, 1, 0, 0], 'speed': [0, 1, 2, 0], 'metres': [0, 1, 1, 0], 'km': [0, 0, 2, 1], 'time': [2, 6, 15, 23], 'hr': [0, 1, 2, 1]}