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

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

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