Projection: add/remove columns

This query only returns one column. This one column contains depictions of Pokémon (bindings for variable ?depiction).

The ?pokemon variable is used in the graph pattern, but its bindings are not returned in the projection. Variables like ?pokemon that are internal to the pattern component and are not exposed in the projection are called hidden variables.

Result sets must contain of at least one column. The same column may be included more than once.