# Filter Strings

### Description
Selects Strings

### Input
- `SOURCE [STRING]`: The list of strings to filter

### Output
- `TRUE [STRING]`: the strings for which the selection applies
- `FALSE [STRING]`: the strings for which the selection does not apply

### Parameters
- `Literal`: the value to compare each string against
- `Operation`: comparison function to use (`equal`,`contains`,`startsWith`,`endsWith`)
- `Case-sensitive`: if set to `false`, upper/lower case is ignored

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