This section includes rules regarding hyphens, commas, parentheses and quotations. Both notations may overlap with other uses of parentheses and brackets in mathematics. The numbers in parentheses below indicate their uniform numbers. The consonants enclosed in parentheses occur only in loanwords. Groovy's syntax permits omitting parentheses and dots in some situations. The numbers in parentheses below indicates their uniform numbers. Numbers in parentheses correspond to numbered features in Fig. Therefore, it is customary to omit the parentheses and write formula 139. Translations of names given in parentheses. English names are given in parentheses where possible. There are many conventions for where parentheses are used in formulas. The Persian names are included in the parentheses. The groups, with species numbers in parentheses, follow. The bond symbol appears inside the parentheses; is invalid. Phones written in parentheses represent allophones and are not themselves independent phonemes.