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

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

*GRAMMAR*
fep -> PINK 
 dax -> GREEN 
 lug -> YELLOW 
 tufa -> RED 
 u1 wif x1 -> [u1] [u1] [x1] 
 x1 kiki x2 -> [x1] [x2] 
 x1 gazzer u1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 