### Instruction:

Extract the cause and effect entities from the following sentence:
Providers holding 2nd Tier accreditation shall not be able to compete for contestable work in their own right and can only operate as a sub-contractor to a NERS accredited Provider

### Assistant:

CAUSE_1: Providers holding 2nd Tier accreditation
EFFECT_1: shall not be able to compete for contestable work in their own right
AND: and
EFFECT_2: can only operate as a sub-contractor to a NERS accredited Provider
VARIABLE: Providers
CONDITION: can only operate as a sub-contractor to a NERS accredited Provider
NEGATION: shall not


### END
