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

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

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