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

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

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