### Instruction:

Extract the cause and effect entities from the following sentence:
For the IRS: Spectral samples are obtained by performing a discrete Fourier Transform of the sampled spectral sounding interferogram for a spatial sample

### Assistant:

NOT_RELEVANT: For the IRS:
VARIABLE: a discrete Fourier Transform of the sampled spectral sounding interferogram for a spatial sample
CONDITION: performing
KEYWORD: by
EFFECT_1: Spectral samples are obtained
CAUSE_1: performing a discrete Fourier Transform of the sampled spectral sounding interferogram for a spatial sample


### END
