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

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

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