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

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

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