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

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

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