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

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

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