Random triples
| Subject | Object |
|---|---|
| gptkb:US_Open_1988 | hard court |
| gptkb:Davis_Cup_2016_final | hard court |
| gptkb:US_Open_1993 | hard |
| gptkb:Davis_Cup_2023_final | hard court |
| gptkb:Davis_Cup | varies |
| gptkb:US_Open_1983 | hard court |
| gptkb:1982_Davis_Cup | Indoor hard court |
| gptkb:Davis_Cup_1984_final | hard court |