What is the proper way to interpret the residual clauses in a will?

The respondents submit that the provision of four interpretations of the residual clauses for the court to consider and choose from is inconsistent with the proper approach to interpreting a will, as it amounts to a request to engage in “speculation about the nature, and extent, of the misconception and then to speculate further as to what the Testator’s intention may have been” (citing Lau v. Mak at para. 11).