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

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

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