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

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

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