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

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

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