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

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

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