I can't answer this question, can someone help me please?

Take the following selection of 70 English Pokemon names, and generate the sequence with the highest possible number of Pokemon names where the subsequent name starts with the final letter of the preceding name. No Pokemon name is to be repeated.

const pokemonList=['audino', 'bagon', 'baltoy', 'banette', 'bidoof', 'braviary', 'bronzor', 'carracosta', 'charmeleon', 'cresselia', 'croagunk', 'darmanitan', 'deino', 'emboar', 'emolga', 'exeggcute', 'gabite', 'girafarig', 'gulpin', 'haxorus', 'heatmor', 'heatran', 'ivysaur', 'jellicent', 'jumpluff', 'kangaskhan', 'kricketune', 'landorus', 'ledyba', 'loudred', 'lumineon', 'lunatone', 'machamp', 'magnezone', 'mamoswine', 'nosepass', 'petilil', 'pidgeotto', 'pikachu', 'pinsir', 'poliwrath', 'poochyena', 'porygon2', 'porygonz', 'registeel', 'relicanth', 'remoraid', 'rufflet', 'sableye', 'scolipede', 'scrafty', 'seaking', 'sealeo', 'silcoon', 'simisear', 'snivy', 'snorlax', 'spoink', 'starly', 'tirtouga', 'trapinch', 'treecko', 'tyrogue', 'vigoroth', 'vulpix', 'wailord', 'wartortle', 'whismur', 'wingull', 'yamask'];