### Instruction:

Extract the cause and effect entities from the following sentence:
SIP: the SIP protocol is ideal whenever data must be acquired in a conversational manner

### Assistant:

KEYWORD: whenever
VARIABLE: data
CONDITION: must be acquired in a conversational manner
EFFECT_1: the SIP protocol is ideal
CAUSE_1: data must be acquired in a conversational manner
NOT_RELEVANT: SIP:

