sam: test section ‘xea’ against all

At the moment, I am testing with sam the speech model xea (contains about 800 German words) against Ralf’s German speech model 0.1.6 (contains about 25000 German words). The file:///home/ubuntu/Documents/201008/sam-0.1.6/test-xea-against-all.sam has the following content:

/home/ubuntu/.kde/share/apps/simon/model/hmmdefs
/home/ubuntu/.kde/share/apps/simon/model/tiedlist
/home/ubuntu/.kde/share/apps/simon/model/model.dict
/home/ubuntu/.kde/share/apps/simon/model/model.dfa
/home/ubuntu/Documents/201008/wav-all
/home/ubuntu/Documents/201006/audacity/xea-folder/wav-xea
/home/ubuntu/Documents/201008/sam-0.1.6/lexicon
/home/ubuntu/Documents/201008/sam-0.1.6/model.grammar
/home/ubuntu/Documents/201008/sam-0.1.6/simple.voca
/home/ubuntu/Documents/201008/prompts-wav.txt
/home/ubuntu/Documents/201006/audacity/xea-folder/prompts-xea
/usr/share/kde4/apps/simon/model/tree1.hed
/usr/share/kde4/apps/simon/model/wav_config
16000
/usr/share/kde4/apps/simond/default.jconf
2

Question: what does the 2 in the last line mean?

By the way, I used the Serialize scenarios button (input file:///home/ubuntu/Documents/201007/german-speech-model-0.1.6/scenario-0.1.6.xml) to generate the following files:
file:///home/ubuntu/Documents/201008/sam-0.1.6/lexicon
file:///home/ubuntu/Documents/201008/sam-0.1.6/model.grammar
file:///home/ubuntu/Documents/201008/sam-0.1.6/simple.voca

I think that it is a good idea to test a subset (e.g. xea) against the superset (xaa+xab+xac+…+xpw).

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