### Instruction:

Extract the cause and effect entities from the following sentence:
The CTS shall complete the mission without requiring an EVA for nominal operations, contingency operations, or to perform maintenance activity

### Assistant:

NEGATION: without
EFFECT_1: without requiring an EVA for nominal operations
EFFECT_2: contingency operations
OR: or
EFFECT_3: to perform maintenance activity
CAUSE_1: The CTS shall complete the mission
VARIABLE: maintenance activity
CONDITION: to perform

