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

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

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