   "VA_MA"      "QC_MA"      "VC_MA"     </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [56] "QE_MA"      "VE_MA"      "QA_01"      "VA_01"      "QC_01"     </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [61] "VC_01"      "QE_01"      "VE_01"      "QA_02"      "VA_02"     </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [66] "QC_02"      "VC_02"      "QE_02"      "VE_02"      "QA_03"     </span>
<span class="r-out co"><span class="r-pr">#&gt;</span>  [71] "VA