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

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

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