text: The authors propose a generative method that can produce images along a hierarchy of specificity, i.e. both when all relevant attributes are specified, and when some are left undefined, creating a more abstract generation task. Pros:+ The results demonstrating the method's ability to generate results for (1) abstract and (2) novel/unseen attribute descriptions, are generally convincing. Both quantitative and qualitative results are provided. + The paper is fairly clear. Cons:- It is unclear how to judge diversity qualitatively, e.g. in Fig. 4(b). - Fig. 5 could be more convincing; "bushy eyebrows" is a difficult attribute to judge, and in the abstract generation when that is the only attribute specified, it is not clear how good the results are.