### Instruction:

Extract the cause and effect entities from the following sentence:
At all times during operation, the WFM shall be shielded from direct solar flux by a sunshield

### Assistant:

KEYWORD: At
VARIABLE: the WFM
CAUSE_1: all times
CAUSE_2: operation
CONDITION: shall be shielded from direct solar flux by a sunshield
EFFECT_1: the WFM shall be shielded from direct solar flux by a sunshield

