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

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

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