### Instruction:

Extract the cause and effect entities from the following sentence:
The TMT Observatory in steady-state operations shall have no more than 3% unscheduled technical downtime between the end of evening nautical twilight and the start of morning nautical twilight during hours scheduled for science operations

### Assistant:

VARIABLE: operations
CONDITION: more than 3% unscheduled technical downtime between the end of evening nautical twilight and the start of morning nautical twilight
KEYWORD: during
CAUSE_1: steady-state operations
EFFECT_1: shall have no more than 3% unscheduled technical downtime between the end of evening nautical twilight and the start of morning nautical twilight
CAUSE_2: hours scheduled for science operations
NEGATION: shall have no

