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

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

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