%answer-para-level; Inside an Answer Paragraph-Level Elements

The elements that may be used at the same structural level as a paragraph, when used inside an <answer>. Remarks: This rather awkward parameter entity was created to overcome the DTD determinism issues when using <explanation> inside an <answer>. In order for <explanation> to be used at the end of an answer, it must not be allowed at the paragraph level inside <answer>.
Declaration
<!ENTITY % answer-para-level   
                        "%block-display-minus-explanation.class; | 
                         %block-math.class; |
                         %list.class; | %math.class; |
                         %nothing-but-para.class; |
                         %related-article.class; |
                         %rest-of-para.class; | %x.class;"           >
Expanded Declaration

address | alternatives | answer | answer-set | array | block-alternatives | boxed-text | chem-struct-wrap | code | fig | fig-group | graphic | media | preformat | question | question-wrap | question-wrap-group | supplementary-material | table-wrap | table-wrap-group | disp-formula | disp-formula-group | def-list | list | tex-math | mml:math | p | related-article | related-object | ack | disp-quote | speech | statement | verse-group | x