Arg0:agent, entity trading
Arg1:thing being traded (away)
Arg2:other exchanger
Arg3:other item in exchange, price, or premium,     traded for or at
Arg4:benefactive
| most typical usage (-) | |
|---|---|
|  | |
| Arg0: | *trace* -> The bank | 
| REL: | swap | 
| Arg1: | that | 
| Arg3-for: | other Mexican notes supported by U.S. Treasury zero-coupon bonds | 
| with another exchanger (-) | |
|---|---|
|  | |
| Arg0: | Mary | 
| REL: | swapped | 
| Arg1: | germs | 
| Arg2-with: | John | 
| Argm-TMP: | last night |