Foster might have attended to the poems and shown how willfully they use place-names (and in the later verse, Yeats' famous friends' names) to erect the mansion of Irish literature.
Foster worked very hard on poems.
mnli hypothesis: Foster worked very hard on poems. premise: Foster might have attended to the poems and shown how willfully they use place-names (and in the later verse, Yeats' famous friends' names) to erect the mansion of Irish literature.