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

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

*GRAMMAR*
wif -> RED 
 dax -> PINK 
 zup -> BLUE 
 gazzer -> GREEN 
 x1 fep x2 -> [x1] [x2] 
 u1 tufa x1 -> [x1] [u1] 
 u1 lug -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 