# Browse triples

### Description
Simple browsing from a list of objects to connected elements of a graph.

### Input
- `SOURCE [OBJ]`: a list of objects

### Output
- `RESULT [OBJ]`: a list of objects resulting from the navigation step
- `FROMTO [OBJ,OBJ]`: a list of pairs resulting from the navigation step

### Parameters
- `Operation`: how to interpret `SOURCE` in the graph triples and what to return (`_` = free variable)
  - `Subject -> Predicate`: `(SOURCE, RESULT, _)`
  - `Subject -> Object`: `(SOURCE, _, RESULT)`
  - `Subject -> Attribute`: `(SOURCE, _, RESULT)`
  - `Predicate -> Subject`: `(RESULT, SOURCE, _)`
  - `Predicate -> Object`: `(_, SOURCE, RESULT)`
  - `Object -> Subject`: `(RESULT, _, SOURCE)`
  - `Object -> Predicate`: `(_, RESULT, SOURCE)`
- `Free-variable score aggregation`: how to aggregate scores when de-duplicating values for `_`
  (`ALL` = no de-duplication of values for `_`).

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