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

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

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