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

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

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