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

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

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