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

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

*GRAMMAR*
zup -> GREEN 
 tufa -> RED 
 lug -> BLUE 
 wif -> PURPLE 
 x1 blicket x2 -> [x2] [x1] 
 u1 fep x1 -> [u1] [x1] 
 u1 dax u2 -> [u2] [u1] [u2] [u2] [u2] 
 u1 x1 -> [u1] [x1] 
 