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

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

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