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

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

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