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

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

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