*SUPPORT*
IN: dax kiki tufa OUT: YELLOW RED
IN: zup OUT: BLUE
IN: zup kiki tufa fep OUT: BLUE RED BLUE RED BLUE RED
IN: dax wif dax fep OUT: YELLOW YELLOW YELLOW YELLOW YELLOW YELLOW
IN: zup wif zup fep OUT: BLUE BLUE BLUE BLUE BLUE BLUE
IN: gazzer wif tufa OUT: RED GREEN
IN: dax kiki tufa kiki dax OUT: YELLOW RED YELLOW
IN: dax wif dax OUT: YELLOW YELLOW
IN: zup wif tufa fep OUT: RED BLUE RED BLUE RED BLUE
IN: tufa fep OUT: RED RED RED
IN: dax wif gazzer OUT: GREEN YELLOW
IN: tufa wif dax wif dax gazzer wif tufa OUT: YELLOW RED GREEN YELLOW RED
IN: dax OUT: YELLOW
IN: zup kiki tufa dax gazzer gazzer OUT: BLUE RED YELLOW GREEN GREEN

*QUERY*
IN: gazzer dax wif dax zup OUT: GREEN YELLOW BLUE YELLOW
IN: zup wif gazzer wif gazzer OUT: GREEN GREEN BLUE
IN: dax kiki gazzer fep OUT: YELLOW GREEN YELLOW GREEN YELLOW GREEN
IN: tufa zup kiki gazzer kiki dax kiki gazzer OUT: RED BLUE GREEN YELLOW GREEN
IN: gazzer fep OUT: GREEN GREEN GREEN
IN: gazzer OUT: GREEN
IN: gazzer kiki tufa fep OUT: GREEN RED GREEN RED GREEN RED
IN: zup gazzer OUT: BLUE GREEN
IN: dax fep OUT: YELLOW YELLOW YELLOW
IN: zup kiki zup fep OUT: BLUE BLUE BLUE BLUE BLUE BLUE

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