black-line-singularity
@slide-black-line-singularity
@s5-black-line-singularity

[-- --]

@link-black-line-singularity
@site-black-line-singularity

@search-black-line-singularity

@display-black-line-singularity

@rail-black-line-singularity
shift: x / y / z


@tunnel-black-line-singularity
@plane-black-line-singularity
@crystal-black-line-singularity