Question:  Grease trucks on the College Avenue campus of Rutgers University are known for serving a sandwhich with no standardized what?
Sentence (from "Submarine sandwich"): A submarine, also known as a sub, hoagie, hero, grinder, wedge, spukie, or Italian sandwich, is a type of sandwich that consists of a length of bread or roll split lengthwise and filled with a variety of meats, cheeses, vegetables, and condiments.
Relevant evidence: Yes