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

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

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