### Instruction:

Extract the cause and effect entities from the following sentence:
There is not normally a requirement for Providers who simply introduce contractors to the client and where the construction Provider does the entire liaison with the host utility and the on-site liaison with the client to be accredited as project managers

### Assistant:

EFFECT_1: There is not normally a requirement
KEYWORD: who
CAUSE_1: simply introduce contractors to the client
AND: and
CAUSE_2: the construction Provider does the entire liaison with the host utility
CAUSE_3: the on-site liaison with the client to be accredited as project managers
VARIABLE: the construction Provider
NEGATION: is not
CONDITION: the on-site liaison with the client to be accredited as project managers

