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

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

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