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

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

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