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

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

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