<prompt> A patient is diagnosed with cancer. Size of the lesion is found to be 5 cm in diameter and metastasis is found with single ipsilateral lymph node. The stage according to TNM staging is:Stage 1Stage 2Stage 3Stage 4  <response>: Without T4 N1 always gives stage III only, with T4,N1 gives stage IV. N2 N3 always gives stage IV.T3 implies Tumor 4 cm. 