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

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

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