The decimal separator is a point. With at least one digit before the point. There is a finite list of names of real numbers which are admissible answers. The list of all admissible names of real numbers appears in a table at the end of this document. These kind of questions need to be answered using words.
Spaces are irrelevant.
In the case of personal names, only the main name or family name should be used. For instance, the answer to the first question above is newton and the answers Isaac Newton , I. Newton , Newton,I. , etc. are wrong. Only 7-bit ascii code is allowed. When the answer to a question is a noun, the answer should be written in english or catalan. For instance, correct answers to the second question above are cubic and cubica .