*SUPPORT*
IN: wif wif fep tufa wif OUT: BLUE BLUE BLUE RED BLUE
IN: dax tufa wif OUT: BLUE PINK BLUE
IN: dax OUT: PINK
IN: fep tufa wif OUT: BLUE RED BLUE
IN: fep kiki fep OUT: RED RED RED RED RED
IN: zup kiki fep OUT: RED RED GREEN GREEN RED
IN: fep kiki dax OUT: PINK PINK RED RED PINK
IN: zup OUT: GREEN
IN: fep zup fep OUT: RED GREEN RED
IN: zup lug OUT: GREEN GREEN
IN: dax wif dax OUT: PINK BLUE PINK
IN: dax kiki wif OUT: BLUE BLUE PINK PINK BLUE
IN: wif fep OUT: BLUE RED
IN: fep lug lug lug OUT: RED RED RED RED RED RED RED RED

*QUERY*
IN: fep tufa zup OUT: GREEN RED GREEN
IN: fep dax lug OUT: RED PINK RED PINK
IN: zup kiki dax OUT: PINK PINK GREEN GREEN PINK
IN: wif tufa fep OUT: RED BLUE RED
IN: zup tufa zup lug OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: wif fep tufa zup OUT: BLUE GREEN RED GREEN
IN: fep OUT: RED
IN: dax kiki fep OUT: RED RED PINK PINK RED
IN: dax kiki zup OUT: GREEN GREEN PINK PINK GREEN
IN: wif OUT: BLUE

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