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

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

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