*SUPPORT*
IN: tufa kiki OUT: RED RED
IN: wif dax tufa OUT: RED BLUE RED RED
IN: tufa gazzer tufa kiki OUT: RED RED RED RED RED RED
IN: zup dax zup OUT: GREEN GREEN GREEN GREEN
IN: wif lug dax tufa OUT: BLUE RED PURPLE RED RED
IN: wif wif gazzer tufa wif OUT: BLUE BLUE RED BLUE BLUE RED BLUE
IN: wif tufa gazzer wif zup OUT: BLUE RED BLUE GREEN RED BLUE GREEN
IN: lug gazzer zup kiki OUT: PURPLE GREEN GREEN PURPLE GREEN GREEN
IN: wif gazzer tufa tufa kiki OUT: BLUE RED RED RED BLUE RED RED RED
IN: tufa dax zup OUT: GREEN RED GREEN GREEN
IN: zup OUT: GREEN
IN: lug tufa lug OUT: PURPLE RED PURPLE
IN: wif kiki OUT: BLUE BLUE
IN: tufa OUT: RED

*QUERY*
IN: lug gazzer zup OUT: PURPLE GREEN PURPLE GREEN
IN: tufa dax lug OUT: PURPLE RED PURPLE PURPLE
IN: tufa lug dax wif OUT: RED BLUE PURPLE BLUE BLUE
IN: wif dax lug OUT: PURPLE BLUE PURPLE PURPLE
IN: lug gazzer wif kiki OUT: PURPLE BLUE BLUE PURPLE BLUE BLUE
IN: lug dax tufa OUT: RED PURPLE RED RED
IN: zup kiki OUT: GREEN GREEN
IN: zup wif gazzer zup OUT: GREEN BLUE GREEN BLUE GREEN
IN: lug wif dax wif OUT: PURPLE BLUE BLUE BLUE BLUE
IN: zup tufa OUT: GREEN RED

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