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

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

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