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

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

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