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

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

*GRAMMAR*
tufa -> PURPLE 
 dax -> BLUE 
 fep -> GREEN 
 gazzer -> YELLOW 
 x1 wif u1 -> [x1] [u1] [x1] 
 x1 lug x2 -> [x1] [x1] [x2] 
 u1 zup -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 