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

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

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