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

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

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