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

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

*GRAMMAR*
kiki -> PURPLE 
 tufa -> YELLOW 
 dax -> GREEN 
 wif -> RED 
 x1 lug x2 -> [x1] [x2] 
 u1 gazzer x1 -> [u1] [x1] 
 x1 zup u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 