Random triples
| Subject | Object |
|---|---|
| gptkb:Grand_Slam_tennis_tournaments | winning all four tournaments in a single year |
| gptkb:ITF_Grand_Slam | winning all four in one year |
| gptkb:Rod_Laver | 1962 |
| gptkb:Steffi_Graf | 1988 |
| gptkb:Rod_Laver | 1969 |
| gptkb:Wimbledon_Championships | winning all four in one year |
| gptkb:Margaret_Smith_Court | 1970 |