### Instruction:

Extract the cause and effect entities from the following sentence:
The TMT Observatory shall enable real-time selection and execution of observations with flexibility in response to changing conditions and ongoing observations

### Assistant:

VARIABLE: observations
CONDITION: ongoing
AND: and
KEYWORD: in response to
CAUSE_1: changing conditions
CAUSE_2: ongoing observations
EFFECT_1: The TMT Observatory shall enable real-time selection
EFFECT_2: execution of observations with flexibility

