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

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

*GRAMMAR*
zup -> PINK 
 dax -> RED 
 wif -> GREEN 
 blicket -> YELLOW 
 u1 gazzer u2 -> [u2] [u1] 
 u1 tufa u2 -> [u2] [u1] [u1] [u2] [u2] [u1] 
 x1 fep x2 -> [x1] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 