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

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

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