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

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

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