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

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

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