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

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

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