*SUPPORT*
IN: wif OUT: PINK
IN: zup kiki dax kiki dax fep tufa OUT: GREEN BLUE RED BLUE
IN: tufa tufa lug OUT: RED RED RED RED
IN: dax fep wif kiki dax dax OUT: PINK BLUE BLUE BLUE
IN: tufa kiki zup fep dax OUT: RED BLUE GREEN
IN: zup kiki wif wif lug OUT: GREEN PINK PINK PINK PINK
IN: zup OUT: GREEN
IN: dax wif fep wif OUT: BLUE PINK PINK
IN: dax fep zup OUT: GREEN BLUE
IN: tufa lug OUT: RED RED RED
IN: tufa OUT: RED
IN: dax fep tufa OUT: RED BLUE
IN: dax lug OUT: BLUE BLUE BLUE
IN: tufa fep dax kiki tufa OUT: BLUE RED RED

*QUERY*
IN: wif wif fep zup OUT: PINK GREEN PINK
IN: zup kiki dax kiki zup OUT: GREEN BLUE GREEN
IN: zup lug OUT: GREEN GREEN GREEN
IN: dax zup lug kiki wif wif OUT: BLUE GREEN GREEN GREEN PINK PINK
IN: dax OUT: BLUE
IN: tufa tufa fep wif OUT: RED PINK RED
IN: dax fep dax OUT: BLUE BLUE
IN: zup kiki zup lug OUT: GREEN GREEN GREEN GREEN
IN: zup fep tufa OUT: RED GREEN
IN: dax kiki wif dax lug OUT: BLUE PINK BLUE BLUE BLUE

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