### Instruction:

Extract the cause and effect entities from the following sentence:
If the reviewer requires a second opinion before the case is closed, the ‘Second check requested’ field is ticked

### Assistant:

CAUSE_1: the reviewer requires a second opinion
EFFECT_1: the ‘Second check requested’ field is ticked
KEYWORD: If
VARIABLE: the case
CONDITION: is closed
NEGATION: before
CAUSE_2: the case is closed

