*SUPPORT*
IN: fep fep tufa lug OUT: GREEN GREEN GREEN GREEN RED GREEN RED
IN: zup tufa zup OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: zup wif OUT: YELLOW YELLOW
IN: fep wif OUT: GREEN GREEN
IN: zup zup OUT: YELLOW YELLOW
IN: zup kiki lug wif OUT: YELLOW RED RED
IN: fep tufa lug OUT: GREEN GREEN GREEN RED GREEN RED
IN: lug tufa fep OUT: RED RED RED GREEN RED GREEN
IN: zup kiki zup tufa zup OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: fep OUT: GREEN
IN: dax zup tufa dax OUT: PURPLE YELLOW YELLOW YELLOW PURPLE YELLOW PURPLE
IN: dax kiki lug zup tufa zup OUT: PURPLE RED YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: lug wif OUT: RED RED
IN: dax wif OUT: PURPLE PURPLE

*QUERY*
IN: lug OUT: RED
IN: dax kiki lug dax tufa fep OUT: PURPLE RED PURPLE PURPLE PURPLE GREEN PURPLE GREEN
IN: dax kiki fep wif OUT: PURPLE GREEN GREEN
IN: fep tufa dax OUT: GREEN GREEN GREEN PURPLE GREEN PURPLE
IN: lug kiki fep kiki fep tufa zup OUT: RED GREEN GREEN GREEN GREEN YELLOW GREEN YELLOW
IN: fep kiki dax tufa lug OUT: GREEN PURPLE PURPLE PURPLE RED PURPLE RED
IN: zup OUT: YELLOW
IN: dax tufa lug OUT: PURPLE PURPLE PURPLE RED PURPLE RED
IN: dax OUT: PURPLE
IN: lug zup wif OUT: RED YELLOW YELLOW

*GRAMMAR*
fep -> GREEN 
 zup -> YELLOW 
 lug -> RED 
 dax -> PURPLE 
 u1 tufa u2 -> [u1] [u1] [u1] [u2] [u1] [u2] 
 u1 kiki x1 -> [u1] [x1] 
 u1 wif -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 