### Instruction:

Extract the cause and effect entities from the following sentence:
Enhanced surveillance and new procedures enable the ANSP to delegate some responsibility for maintaining aircraft-to-aircraft separation to flight crews

### Assistant:

CAUSE_1: Enhanced surveillance
CAUSE_2: new procedures
EFFECT_1: enable the ANSP to delegate some responsibility for maintaining aircraft-to-aircraft separation to flight crews
CONDITION: new
VARIABLE: procedures
AND: and

