a=pan,b=pan,foo=2
a=eks,b=pan,foo=2
a=wye,b=wye,foo=2
a=eks,b=wye,foo=2
a=wye,b=pan,foo=2
a=zee,b=pan,foo=2
a=eks,b=zee,foo=2
a=zee,b=wye,foo=2
a=hat,b=wye,foo=2
a=pan,b=wye,foo=2
