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

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

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