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

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

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