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

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

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