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

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

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