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

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

*GRAMMAR*
gazzer -> PINK 
 dax -> BLUE 
 lug -> YELLOW 
 wif -> GREEN 
 x1 tufa x2 -> [x1] [x2] 
 x1 kiki x2 -> [x2] [x2] [x1] [x2] 
 u1 zup u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 