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

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

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