### CONTEXT (Previous Events):
<system_output timestamp="150.681156">	</system_output>
<user_input timestamp="150.717042">OC</user_input>
<system_output timestamp="150.739581">	</system_output>
<user_input timestamp="150.757141">OC</user_input>
<system_output timestamp="150.77797">[C</system_output>
<user_input timestamp="150.81922">OC</user_input>
<system_output timestamp="150.834642">[C</system_output>
<user_input timestamp="150.839755">OC</user_input>
<system_output timestamp="150.854327">[C</system_output>
<user_input timestamp="150.900364">OC</user_input>
<system_output timestamp="150.912872">[C</system_output>
<user_input timestamp="150.941417">OC</user_input>
<system_output timestamp="150.950416">[C</system_output>
<user_input timestamp="151.232014">OC</user_input>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="151.23672">[C</system_output>

Answer: 151.23672, old event