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

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

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