### Instruction:

Extract the cause and effect entities from the following sentence:
This means that each ground-based spectrum would be much bigger on the detector, thus making a massive redshift survey as Euclid unfeasible from the ground

### Assistant:

KEYWORD: thus
VARIABLE: each ground-based spectrum
CONDITION: making
EFFECT_1: making a massive redshift survey as Euclid unfeasible from the ground
CAUSE_1: each ground-based spectrum would be much bigger on the detector
NOT_RELEVANT: This means that

