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

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

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