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

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

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