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

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

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