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

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

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