# Split [String,String]

### Description
Splits a two-column input `[STRING,STRING]` into two separate 1-column outputs.

### Input
- `SOURCE [STRING,STRING]`: a 2-column input with an string-string pair

### Output
- `A [STRING]`: the first column of `SOURCE`
- `B [STRING]`: the second column of `SOURCE`

Output scores can be [aggregated](docs://score_aggregation) and/or [normalised](docs://score_normalisation).