### CONTEXT (Previous Events):
<system_output timestamp="6865.212052">o</system_output>
<user_input timestamp="6865.319081">n</user_input>
<system_output timestamp="6865.333031">n</system_output>
<user_input timestamp="6865.479906"> </user_input>
<system_output timestamp="6865.496343"> </system_output>
<user_input timestamp="6865.761525">f</user_input>
<system_output timestamp="6865.779545">f</system_output>
<user_input timestamp="6865.861444">i</user_input>
<system_output timestamp="6865.881986">i</system_output>
<user_input timestamp="6866.199266">l</user_input>
<system_output timestamp="6866.204798">l</system_output>
<user_input timestamp="6866.280676">e</user_input>
<system_output timestamp="6866.284822">e</system_output>
<user_input timestamp="6866.564147">.</user_input>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="6866.566657">.</system_output>

Answer: 6866.566657, old event