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

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

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