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

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

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