### CONTEXT (Previous Events):
<user_input timestamp="852.274344">s</user_input>
<system_output timestamp="852.286192">[1@s</system_output>
<user_input timestamp="852.335448">u</user_input>
<system_output timestamp="852.344224">[1@u</system_output>
<user_input timestamp="852.533804">d</user_input>
<system_output timestamp="852.541074">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<user_input timestamp="852.634676">o</user_input>
<system_output timestamp="852.639378">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<user_input timestamp="852.774863"> </user_input>
<system_output timestamp="852.777138">[1@ </system_output>
<user_input timestamp="853.033836">
</user_input>
<system_output timestamp="853.053187">
[?2004l
</system_output>
<system_output timestamp="853.065334">sudo: unable to resolve host faiserver: Name or service not known
</system_output>
<system_output timestamp="853.074548">#! /bin/bash

error=0 ; trap &quot;error=$((error|1))&quot; ERR

#fcopy -Uv boot/grub/grub.cfg

# install grub.
$ROOTCMD grub-install
# generate a config file
$ROOTCMD update-grub2

exit $error

</system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<system_output timestamp="853.078559">[?2004h]0;demo@faiserver: /home/fai/config/scripts/GRUBEFIdemo@faiserver:/home/fai/config/scripts/GRUBEFI$ </system_output>

Answer: 853.078559, new event