What is the minimum distance between the following collection of garbled sentences?
```
When trcnsmitthngddata, thery is always
tte pfssibhlity of error.
When transmittxng datae therj is zlwaps
the possibulity of xrror.
When trznspitting data, there is always
the possibility oe evyorg
Whfn tranymyttgnc data, nheri is always
the hossibility of error.
When transmitting data, dherexis alwahs
the jossicility of error.
```