Here is a list of all namespaces with brief descriptions:

[detail level 12345]

QCD_GenJets_cfi
QCD_Pt_120_170_13TeV_TuneCUETP8M1_cfi
QCD_Pt_120_170_7TeV_cfi
QCD_Pt_120_170_8TeV_cfi
QCD_Pt_120_170_8TeV_TuneCUETP8M1_cfi
QCD_Pt_120_170_cfi
QCD_Pt_15_20_7TeV_cfi
QCD_Pt_15_20_8TeV_cfi
QCD_Pt_15_20_8TeV_TuneCUETP8M1_cfi
QCD_Pt_15_20_cfi
QCD_Pt_170_230_7TeV_cfi
QCD_Pt_170_230_8TeV_cfi
QCD_Pt_170_230_8TeV_TuneCUETP8M1_cfi
QCD_Pt_170_230_cfi
QCD_Pt_20_30_7TeV_cfi
QCD_Pt_20_30_8TeV_cfi
QCD_Pt_20_30_8TeV_TuneCUETP8M1_cfi
QCD_Pt_20_30_cfi
QCD_Pt_3000_3500_13TeV_cfi
QCD_Pt_3000_3500_13TeV_TuneCUETP8M1_cfi
QCD_Pt_3000_3500_14TeV_cfi
QCD_Pt_3000_3500_7TeV_cfi
QCD_Pt_3000_3500_8TeV_cfi
QCD_Pt_3000_3500_8TeV_TuneCUETP8M1_cfi
QCD_Pt_3000_3500_cfi
QCD_Pt_30_13TeV_herwigpp_cff
QCD_Pt_30_13TeV_pythia8_cff
QCD_Pt_30_50_13TeV_TuneCUETP8M1_cfi
QCD_Pt_30_50_7TeV_cfi
QCD_Pt_30_50_8TeV_cfi
QCD_Pt_30_50_8TeV_TuneCUETP8M1_cfi
QCD_Pt_30_50_cfi
QCD_Pt_30_7TeV_herwig6_cff
QCD_Pt_30_7TeV_herwigpp_cff
QCD_Pt_30_7TeV_pythia8_cff
QCD_Pt_30_80_BCtoE_8TeV
QCD_Pt_30_80_BCtoE_8TeV_TuneCUETP8M1_cfi
QCD_Pt_30_8TeV_herwig6_cff
QCD_Pt_30_8TeV_herwigpp_cff
QCD_Pt_30_8TeV_pythia8_cff
QCD_Pt_30_TuneD6T_7TeV_pythia6_cff
QCD_Pt_30_TuneZ2_7TeV_pythia6_cff
QCD_Pt_30_TuneZ2star_13TeV_pythia6_cff
QCD_Pt_30_TuneZ2star_8TeV_pythia6_cff
QCD_Pt_50_80_7TeV_cfi
QCD_Pt_50_80_8TeV_cfi
QCD_Pt_50_80_8TeV_TuneCUETP8M1_cfi
QCD_Pt_50_80_cfi
QCD_Pt_600_800_13TeV_cfi
QCD_Pt_600_800_13TeV_TuneCUETP8M1_cfi
QCD_Pt_600_800_8TeV_cfi
QCD_Pt_600_800_8TeV_TuneCUETP8M1_cfi
QCD_Pt_80_120_13TeV_cfi
QCD_Pt_80_120_13TeV_TuneCUETP8M1_cfi
QCD_Pt_80_120_14TeV_cfi
QCD_Pt_80_120_7TeV_cfi
QCD_Pt_80_120_8TeV_cfi
QCD_Pt_80_120_8TeV_TuneCUETP8M1_cfi
QCD_Pt_80_120_cfi
QCD_Pt_80_170_BCtoE_8TeV
QCD_Pt_80_170_BCtoE_8TeV_TuneCUETP8M1_cfi
QCDAnalysis_EventContent_cff
QCDAnalysis_OutputModules_cff
QCDAnalysis_SkimPaths_cff
QCDForPF_13TeV_cfi
QCDForPF_13TeV_TuneCUETP8M1_cfi
QCDForPF_14TeV_cfi
QCDForPF_7TeV_cfi
QCDForPF_8TeV_cfi
QCDForPF_8TeV_TuneCUETP8M1_cfi
QCDForPF_cfi
QCDgen_cfi
qcdHighPtDQM_cfi
QCDHLT1jetEventContent_cff
QCDHLT1jetOutputModule_cfi
QCDHLT1jetPath_cff
QCDHLT1jetPE1EventContent_cff
QCDHLT1jetPE1OutputModule_cfi
QCDHLT1jetPE1Path_cff
QCDHLT1jetPE1Skim_cfi
QCDHLT1jetPE3EventContent_cff
QCDHLT1jetPE3OutputModule_cfi
QCDHLT1jetPE3Path_cff
QCDHLT1jetPE3Skim_cfi
QCDHLT1jetPE5EventContent_cff
QCDHLT1jetPE5OutputModule_cfi
QCDHLT1jetPE5Path_cff
QCDHLT1jetPE5Skim_cfi
QCDHLT1jetPE7EventContent_cff
QCDHLT1jetPE7OutputModule_cfi
QCDHLT1jetPE7Path_cff
QCDHLT1jetPE7Skim_cfi
QCDHLT1jetSkim_cfi
qcdJetFilterStream_EventContent_cff
qcdJetFilterStreamHi_cff
qcdJetFilterStreamHi_EventContent_cff
qcdJetFilterStreamHiOutputModule_cfi
qcdJetFilterStreamHiPath_cff
qcdJetFilterStreamHiSkim_cff
qcdJetFilterStreamLo_cff
qcdJetFilterStreamLo_EventContent_cff
qcdJetFilterStreamLoOutputModule_cfi
qcdJetFilterStreamLoPath_cff
qcdJetFilterStreamLoSkim_cff
qcdJetFilterStreamMed_cff
qcdJetFilterStreamMed_EventContent_cff
qcdJetFilterStreamMedOutputModule_cfi
qcdJetFilterStreamMedPath_cff
qcdJetFilterStreamMedSkim_cff
qcdLowPtDQM_cfi
qcdPhotonsCosmicDQM_cff
qcdPhotonsDQM_cfi
qcdSingleJetFilter_cfi
qcdSingleJetFilterRandBlock_cff
qcdSingleJetFilters_cff
qcdUeDQM_cfi
qglESProducer_cfi
QGLikelihoodCalculator
QGTagger_cfi
QIE10Task
QIE11Task
qjetsadder_cfi
QQH120Inv_7TeV_cfi
QQH120Inv_8TeV_cfi
QQH120Inv_8TeV_TuneCUETP8M1_cfi
QQH120Inv_cfi
QQH1352T_13TeV_TuneCUETP8M1_cfi
QQH1352T_7TeV_cfi
QQH1352T_8TeV_cfi
QQH1352T_8TeV_TuneCUETP8M1_cfi
QQH1352T_cfi
QQH1352T_Tauola_13TeV_cfi
QQH1352T_Tauola_13TeV_TuneCUETP8M1_cfi
QQH1352T_Tauola_14TeV_cfi
QQH1352T_Tauola_7TeV_cfi
QQH1352T_Tauola_8TeV_cfi
QQH1352T_Tauola_8TeV_TuneCUETP8M1_cfi
QQH1352T_Tauola_cfi
qtxml
QuadReReco_cff
quadrupletseedmerging_cff
QuarkoniaTrackSelector_cfi
query
queryDataSource
querying
queryRR
quickTrackAssociatorByHits_cfi