Random triples
| Subject | Object |
|---|---|
| gptkb:Schwarzschild_black_hole_(zero_spin) | (-,+,+,+) |
| gptkb:anti-de_Sitter_space | (-,+,+,...,+) |
| gptkb:Minkowski_space | (-,+,+,+) |
| gptkb:Minkowski_space | (+,-,-,-) |
| gptkb:anti-de_Sitter_universe | Lorentzian |
| gptkb:Reissner–Nordström_black_hole | (-,+,+,+) |
| gptkb:Witten_spacetime | (-,+,+) |