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

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

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