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

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

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