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if(count(p1_o3.NAOK, p2_o3.NAOK, p3_o3.NAOK, p4_o3.NAOK, p5_o3.NAOK, p6_o3.NAOK, p7_o3.NAOK, p8_o3.NAOK, p9_o3.NAOK, p10_o3.NAOK, p11_o3.NAOK, p12_o3.NAOK, p14_o3.NAOK, p15_o3.NAOK) gt 0,"c",""),
if(count(p1_o4.NAOK, p2_o4.NAOK, p3_o4.NAOK, p4_o4.NAOK, p5_o4.NAOK, p6_o4.NAOK, p7_o4.NAOK, p9_o4.NAOK, p10_o4.NAOK) gt 0,"d",""),
if(count(p1_o5.NAOK, p2_o5.NAOK, p4_o5.NAOK, p5_o5.NAOK, p6_o5.NAOK, p7_o5.NAOK, p10_o5.NAOK) gt 0,"e",""),
if(count(p1_o6.NAOK, p2_o6.NAOK, p4_o6.NAOK, p5_o6.NAOK, p6_o6.NAOK, p7_o6.NAOK, p10_o6.NAOK) gt 0,"f",""),
if(count(p1_o7.NAOK, p2_o7.NAOK, p5_o7.NAOK, p6_o7.NAOK, p7_o7.NAOK, p10_o7.NAOK) gt 0,"g",""),
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if(count(p10_o19.NAOK) gt 0,"s",""),
if(count(p10_o20.NAOK) gt 0,"t","")
)}