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

*QUERY*
IN: fep OUT: GREEN
IN: fep kiki tufa OUT: BLUE GREEN
IN: wif fep kiki zup OUT: PURPLE PINK GREEN
IN: zup lug wif OUT: PURPLE PINK
IN: zup gazzer zup OUT: PURPLE PURPLE
IN: fep lug tufa kiki tufa kiki tufa OUT: BLUE BLUE GREEN BLUE
IN: tufa lug wif kiki wif OUT: PINK BLUE PINK
IN: fep lug fep kiki zup OUT: PURPLE GREEN GREEN
IN: tufa lug wif kiki zup kiki zup OUT: PURPLE PURPLE BLUE PINK
IN: wif gazzer tufa OUT: BLUE PINK

*GRAMMAR*
wif -> PINK 
 tufa -> BLUE 
 fep -> GREEN 
 zup -> PURPLE 
 u1 lug u2 -> [u1] [u2] 
 x1 kiki u1 -> [u1] [x1] 
 x1 gazzer x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 