Write a program to reconstruct a text from a concordance of words. This was a real problem of reconstructing some unpublished texts of the Dead Sea Scrolls using concordances. For example, here is William Wordsworth's poem, Nature and the Poet, and a concordance of words corresponding with the poem. So pure the sky, so quiet was the air! So like, so very like, was day to day! Whene'er I look'd, thy image still was there; It trembled, but it never pass'd away. The 33-word concordance is as follows:

 

In this concordance, each word is shown in a context of up to five words, and the word referred to on each line is preceded with a star. For larger concordances, two numbers have to be included, a number corresponding with a poem and a number of the line where the words can be found. For example, assuming that 1 is the number of Nature and the Poet, line “1:4 but it never pass'd *away.” means that the word “away” is found in this poem in line 4. Note that punctuation marks are included in the context. Write a program that loads a concordance from a file and creates a vector where each cell is associated with one line of the concordance. Then, using a binary search, reconstruct the text.