### CONTEXT (Previous Events):
<user_input timestamp="145.922897">OC</user_input>
<system_output timestamp="145.944634">n</system_output>
<user_input timestamp="145.965808">OC</user_input>
<system_output timestamp="145.986336">f</system_output>
<user_input timestamp="145.987382">OC</user_input>
<system_output timestamp="146.00665">i</system_output>
<user_input timestamp="146.030061">OC</user_input>
<system_output timestamp="146.047366">g</system_output>
<user_input timestamp="146.071864">OC</user_input>
<system_output timestamp="146.08718">/</system_output>
<user_input timestamp="146.114638">OC</user_input>
<system_output timestamp="146.126725">S</system_output>
<user_input timestamp="146.156968">OC</user_input>
<system_output timestamp="146.167533">E</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<user_input timestamp="146.200154">OC</user_input>

Answer: 146.200154, old event