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(ROOT (S (NP (NP (NNP B) (, ,) (NNP Hyderabad) (, ,) (NNP India) (-RRB- -RRB-) (NNP Fermat) (NNP principle)) (SBAR (S (NP (DT This) (NN java) (NN applet)) (VP (VBP let) (S (NP (PRP you)) (VP (VB visualize) (NP (`` ``) (NP (DT the) (NN path)) (PP (IN of) (NP (DT a) (NN ray))) (PP (IN of) (NP (NN light))) (PP (IN between) (NP (CD two) (NNS points)))))))))) (VP (VBZ is) (NP (NP (NP (DT the) (NN path)) (SBAR (WHNP (WDT that)) (S (VP (VBZ minimizes) (NP (DT the) (NN travel) (NN time) ('' '')))))) (PRN (-LRB- -LRB-) (VP (VBN known) (PP (IN as) (NP (NNP Fermat) (NN principle)))) (-RRB- -RRB-)))) (. .)))
B, Hyderabad, India) Fermat principle This java applet let you visualize &quot;the path of a ray of light between two points is the path that minimizes the travel time&quot; (known as Fermat principle).
(ROOT (S (NP (NP (NNP Fermat) (POS 's)) (NN principle)) (VP (VBZ states) (SBAR (IN that) (S (NP (NN light)) (VP (MD will) (ADVP (RB always)) (VP (VB take) (NP (NP (DT the) (NN path)) (PP (IN of) (NP (NP (DT the) (JJS least) (NN amount)) (PP (IN of) (NP (NN time))))))))))) (. .)))