### Instruction:

Extract the cause and effect entities from the following sentence:
The LAD Degraded Field of Regard (FoR) shall be at least 50% of the sky at the end of the Nominal Operations Phase

### Assistant:

KEYWORD: at
CONDITION: shall be at least 50% of the sky
VARIABLE: The LAD Degraded Field of Regard
CAUSE_1: the end of the Nominal Operations Phase
NOT_RELEVANT: (FoR)
EFFECT_1: shall be at least 50% of the sky

