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

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

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