### CONTEXT (Previous Events):
<system_output timestamp="40305.929843">octave-plplot - Octave support for PLplot, a plotting library
</system_output>
<system_output timestamp="40305.936637">probcons-extra - Extra programs from the probcons package
</system_output>
<system_output timestamp="40305.940326">pstoedit - PostScript and PDF files to editable vector graphics converter
</system_output>
<system_output timestamp="40305.945619">python3-pygnuplot - Simple Python wrapper for Gnuplot
</system_output>
<system_output timestamp="40305.960566">python3-gnuplot - Python interface to the gnuplot plotting program
python3-gnuplotlib - Gnuplot-based plotter for numpy
</system_output>
<system_output timestamp="40306.016109">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="40306.024667">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="40306.029206">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="40306.080684">... [TRUNCATED TO SAVE SPACE] ...</system_output>
<system_output timestamp="40306.094683">tcptrace - Tool for analyzing tcpdump output
</system_output>
<system_output timestamp="40306.099581">texlive-pictures - TeX Live: Graphics, pictures, diagrams
</system_output>
<system_output timestamp="40306.10146">texlive-latex-extra - TeX Live: LaTeX additional packages
</system_output>
<system_output timestamp="40306.103083">texlive-science - TeX Live: Mathematics, natural sciences, computer science packages
</system_output>
<system_output timestamp="40306.190972">[?2004hdemo@faiserver:/home/fai/config$ </system_output>

### TARGET LINE (Extract and Classify THIS Timestamp):
<user_input timestamp="40328.123728">OA</user_input>

Answer: 40328.123728, new event