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

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

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