Boston v6.5.4.0 If I try the following FEKL statements, all result in a syntax error: ``` AB IS AN ENTITY TYPE ``` ``` ABC IS AN ENTITY TYPE ``` ``` ABCD IS AN ENTITY TYPE ``` ``` ABCDE IS AN ENTITY TYPE ``` How does one load acronyms? Would it be possible to enclose them in double quotes, so as to indicate to FEKL that this is not a keyword? e.g. ``` "AB" IS AN ENTITY TYPE ```