*SUPPORT*
IN: gazzer dax gazzer OUT: GREEN PINK GREEN
IN: kiki zup kiki OUT: RED RED RED
IN: kiki fep OUT: RED RED RED
IN: kiki OUT: RED
IN: dax gazzer lug OUT: PINK GREEN GREEN GREEN GREEN
IN: kiki zup wif OUT: RED RED BLUE
IN: gazzer gazzer OUT: GREEN GREEN
IN: gazzer lug OUT: GREEN GREEN GREEN GREEN
IN: gazzer fep OUT: GREEN GREEN GREEN
IN: wif zup dax OUT: BLUE BLUE PINK
IN: gazzer zup dax OUT: GREEN GREEN PINK
IN: dax fep OUT: PINK PINK PINK
IN: kiki zup gazzer OUT: RED RED GREEN
IN: dax zup wif OUT: PINK PINK BLUE

*QUERY*
IN: wif lug OUT: BLUE BLUE BLUE BLUE
IN: gazzer zup gazzer OUT: GREEN GREEN GREEN
IN: gazzer kiki lug OUT: GREEN RED RED RED RED
IN: wif OUT: BLUE
IN: kiki lug OUT: RED RED RED RED
IN: wif zup kiki OUT: BLUE BLUE RED
IN: kiki wif zup wif OUT: RED BLUE BLUE BLUE
IN: gazzer zup kiki OUT: GREEN GREEN RED
IN: gazzer kiki fep OUT: GREEN RED RED RED
IN: dax lug OUT: PINK PINK PINK PINK

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