(1) The cognitive approach seems to be more valid and more
helpful for the understanding of the nature of idiom (…)
(2) The cognitive approach is more valid (…)
It is particularly relevant in cases when hedges are expressed
by modal verbs, e.g.
(3) […] Genre properties […] can clearly be attributed to
acknowledgement texts vs. genre properties (…)
(4) […] Genre properties are clearly attributed to
acknowledgement texts (…)