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

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

*GRAMMAR*
tufa -> RED 
 lug -> YELLOW 
 fep -> BLUE 
 zup -> PURPLE 
 u1 blicket -> [u1] [u1] 
 u1 wif u2 -> [u2] [u1] 
 u1 dax x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 