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

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

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