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

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

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