source: proiecte/Parallel-DT/R8/Data/labor-neg.test @ 24

1,4.0,?,?,none,?,none,?,?,yes,11,average,no,none,no,none,bad
2,2.0,3.0,?,none,38,empl_contr,?,?,yes,12,generous,yes,none,yes,full,bad
2,2.5,2.5,?,tc,39,empl_contr,?,?,?,12,average,?,?,yes,?,bad
2,2.5,3.0,?,tcf,40,none,?,?,?,11,below average,?,?,yes,?,bad
2,4.0,4.0,?,none,40,none,?,3,?,10,below average,no,none,?,none,bad
2,4.5,4.0,?,?,40,?,?,2,no,10,below average,no,half,?,half,bad
2,4.5,4.0,?,none,40,?,?,5,?,11,average,?,full,yes,full,good
2,4.6,4.6,?,tcf,38,?,?,?,?,?,?,yes,half,?,half,good
2,5.0,4.5,?,none,38,?,14,5,?,11,below average,yes,?,?,full,good
2,5.7,4.5,?,none,40,ret_allw,?,?,?,11,average,yes,full,yes,full,good
2,7.0,5.3,?,?,?,?,?,?,?,11,?,yes,full,?,?,good
3,2.0,3.0,?,tcf,?,empl_contr,?,?,yes,?,?,yes,half,yes,?,good
3,3.5,4.0,4.5,tcf,35,?,?,?,?,13,generous,?,?,yes,full,good
3,4.0,3.5,?,none,40,empl_contr,?,6,?,11,average,yes,full,?,full,good
3,5.0,4.4,?,none,38,empl_contr,10,6,?,11,generous,yes,?,?,full,good
3,5.0,5.0,5.0,?,40,?,?,?,?,12,average,?,half,yes,half,good
3,6.0,6.0,4.0,?,35,?,?,14,?,9,generous,yes,full,yes,full,good