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

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

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