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

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

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