### Instruction:

Extract the cause and effect entities from the following sentence:
Coregistration is used to describe the relative position of the spatial samples or pixels between different spectral channels of an instrument or between instruments

### Assistant:

VARIABLE: between instruments
CONDITION: to describe
OR: or
CAUSE_1: Coregistration is used
EFFECT_1: to describe the relative position of the spatial samples
EFFECT_2: pixels between different spectral channels of an instrument
EFFECT_3: between instruments

