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

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

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