In the following Four Questions, the 1st and last part of a sentence are numbered 1 and 6. The rest of the sentence is split into four parts and named P, Q, R and S. These four parts are not given in their proper order. Read the sentence and find out which of the four combinations is correct. Then find the correct answer and indicate it in the Answer Sheet.
Identify the most appropriate option to substitute the underlined segment. If no substitution is required, select No substitution. The shoebill stork can be recognise from its long legs and broad wings.