-- Use gf --run < passive.gfs  or  gf> eh passive.gfs 
--? echo "loading TestLangGer.gf and TestLangEng.gf ..."
--i TestLangGer.gf TestLangEng.gf

? echo "extracting positive, negative and dubious examples from passive.txt ..."
? grep accept passive.txt | sed s/\ --\ [\*a-zA-Z\(\)\ \.\:\,\;\<\>\\_0-4\\+\\?\\-]*// | cpif passive.pos.txt
? wc -l passive.pos.txt
? grep reject passive.txt | sed s/\ --\ [\*a-zA-Z\(\)\ \.\:\,\;\<\>\\_0-4\\+\\?\\-]*// | cpif passive.neg.txt
? wc -l passive.neg.txt
? grep dubious passive.txt | sed s/\ --\ [\*a-zA-Z\(\)\ \.\:\,\;\<\>\\_0-4\\+\\?\\-]*// | cpif passive.dub.txt
? wc -l passive.dub.txt

? echo "parsing positive examples ...; storing trees in passive.pos.new ..."
rf -lines -file="passive.pos.txt" | p -lang=Ger | l -treebank -lang="Ger,Eng" | wf -file="passive.pos.new"
? echo "diff passive.pos.out passive.pos.new:" ; diff passive.pos.out passive.pos.new

? echo "parsing negative examples ...; storing trees in passive.neg.new ..."
rf -lines -file="passive.neg.txt" | p -lang=Ger | l -treebank -lang="Ger,Eng" | wf -file="passive.neg.new"
? echo "diff passive.neg.out passive.neg.new:" ; diff passive.neg.out passive.neg.new

? echo "parsing dubious examples ...; storing trees in passive.dub.new ..."
rf -lines -file="passive.dub.txt" | p -lang=Ger | l -treebank -lang="Ger,Eng" | wf -file="passive.dub.new"
? echo "diff passive.dub.out passive.dub.new:" ; diff passive.dub.out passive.dub.new