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

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

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