*SUPPORT*
IN: zup tufa fep OUT: BLUE GREEN GREEN
IN: dax tufa wif OUT: PURPLE YELLOW YELLOW
IN: wif OUT: PURPLE
IN: dax lug OUT: YELLOW YELLOW YELLOW YELLOW YELLOW
IN: zup fep tufa dax OUT: GREEN YELLOW BLUE BLUE
IN: dax OUT: YELLOW
IN: wif tufa zup OUT: GREEN PURPLE PURPLE
IN: wif dax dax tufa zup OUT: PURPLE YELLOW GREEN YELLOW YELLOW
IN: wif kiki OUT: PURPLE PURPLE
IN: zup tufa zup kiki OUT: GREEN GREEN GREEN GREEN GREEN GREEN
IN: wif tufa wif OUT: PURPLE PURPLE PURPLE
IN: dax tufa fep OUT: BLUE YELLOW YELLOW
IN: dax wif wif OUT: YELLOW PURPLE PURPLE
IN: zup tufa wif kiki OUT: PURPLE GREEN GREEN PURPLE GREEN GREEN

*QUERY*
IN: wif kiki kiki OUT: PURPLE PURPLE PURPLE PURPLE
IN: fep zup dax kiki OUT: BLUE GREEN YELLOW BLUE GREEN YELLOW
IN: zup kiki OUT: GREEN GREEN
IN: zup OUT: GREEN
IN: wif tufa fep OUT: BLUE PURPLE PURPLE
IN: zup tufa zup OUT: GREEN GREEN GREEN
IN: fep OUT: BLUE
IN: dax zup kiki kiki OUT: YELLOW GREEN YELLOW GREEN YELLOW GREEN YELLOW GREEN
IN: fep lug OUT: BLUE BLUE BLUE BLUE BLUE
IN: wif tufa dax kiki OUT: YELLOW PURPLE PURPLE YELLOW PURPLE PURPLE

*GRAMMAR*
fep -> BLUE 
 dax -> YELLOW 
 zup -> GREEN 
 wif -> PURPLE 
 u1 tufa u2 -> [u2] [u1] [u1] 
 x1 lug -> [x1] [x1] [x1] [x1] [x1] 
 x1 kiki -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 