### Instruction:

Extract the cause and effect entities from the following sentence:
Sensitivity (5 σ detection) over 50 ks must be < 5 mCrab over energy range of 2 - 50 keV for a field where there is no source confusion (outside the Galactic Centre)

### Assistant:

KEYWORD: for
NEGATION: is no
CONDITION: must be < 5 mCrab over energy range of 2 - 50 keV
CAUSE_2: a field
NOT_RELEVANT: (5 σ detection)
VARIABLE: a field
CAUSE_1: over 50 ks
EFFECT_1: must be < 5 mCrab over energy range of 2 - 50 keV

