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

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

*GRAMMAR*
tufa -> GREEN 
 zup -> YELLOW 
 gazzer -> BLUE 
 wif -> PINK 
 u1 dax x1 -> [x1] [u1] 
 x1 lug x2 -> [x2] [x2] [x1] [x1] [x2] [x1] [x1] [x2] 
 u1 fep u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 