Ah. That's so different to Nostr json tags, where you need an entry for each.
So, if the event tags have
```json
["T", "Canticle of Canticles"],
["T", "Song of Solomon"],
["T", "Song"],
```
Then I can request from the relay like:
```json
["T", "Canticle of Canticles", "Song of Solomon", "Song"]
```
and it would find any of the three that match?