5 kg−wt5 \mathrm{~kg}-w \mathrm{t}5 kg−wt
7 kg−wt7 \mathrm{~kg}-w \mathrm{t}7 kg−wt
3 kg−wt3 \mathrm{~kg}-w \mathrm{t}3 kg−wt
9 kg−wt9 \mathrm{~kg}-w t9 kg−wt
