Code:
sed 's/(/,/g' out.singnal |\
sed 's/)//g' |\
awk -F"\t|," -v PF=0.8 '{
printf "%s;", $1
if(NF==9 && $3>=PF && $5>=PF && $7>=PF && $9>=PF)
printf " %s; %s; %s; %s\n", $2,$4,$6,$8
else if(NF==9 && $3>=PF && $5>=PF && $7>=PF && $9<PF)
printf " %s; %s; %s; %s\n", $2,$4,$6,"low"
else if(NF==9 && $3>=PF && $5>=PF && $7<PF && $9<PF)
printf " %s; %s; %s; %s\n", $2,$4,"low","low"
else if(NF==9 && $3>=PF && $5<PF && $7<PF && $9<PF)
printf " %s; %s; %s; %s\n", $2,"low","low","low"
else if(NF==9 && $3<PF && $5<PF && $7<PF && $9<PF)
printf " %s; %s; %s; %s\n", "low","low","low","low"
else if(NF==7 && $3>=PF && $5>=PF && $7>=PF)
printf " %s; %s; %s; %s\n", $2,$4,$6,"na"
else if(NF==7 && $3>=PF && $5>=PF && $7<PF)
printf " %s; %s; %s; %s\n", $2,$4,"low","na"
else if(NF==7 && $3>=PF && $5<PF && $7<PF)
printf " %s; %s; %s; %s\n", $2,"low","low","na"
else if(NF==7 && $3<PF && $5<PF && $7<PF)
printf " %s; %s; %s; %s\n","low","low","low","na"
}'