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

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

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