Random triples
| Subject | Object |
|---|---|
| gptkb:Setauket_Spy_Ring | secret messages |
| gptkb:Luftwaffe_signal_units | cipher systems |
| gptkb:Irish_Republican_Army | for communication |
| gptkb:the_British_Special_Operations_Executive | for communication |
| gptkb:Luftwaffe_signal_units | encryption methods |