### Instruction:

Extract the cause and effect entities from the following sentence:
If the ability to initiate Railway emergency calls is implemented in the radio, accidental initiation of a Railway emergency call shall be prevented

### Assistant:

KEYWORD: If
CONDITION: shall be
VARIABLE: accidental initiation of a Railway emergency call
CAUSE_1: the ability to initiate Railway emergency calls is implemented in the radio
NEGATION: prevented
EFFECT_1: accidental initiation of a Railway emergency call shall be prevented

