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

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

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