### Instruction:

Extract the cause and effect entities from the following sentence:
To provide interoperability between the fixed railway networks within the EIRENE network, standardisation of UIC group numbering will be required

### Assistant:

CONDITION: will be required
VARIABLE: the EIRENE network
EFFECT_1: To provide interoperability between the fixed railway networks
CAUSE_2: standardisation of UIC group numbering will be required
KEYWORD: within
CAUSE_1: the EIRENE network

