function solve(input) {
    const wordsOccurence = {};
    const wordsToCheck = input.shift().split(" "); // ['this', 'sentence']
    let counter = 0;

    for (const word of wordsToCheck) {
        for (const str of input) {
            if (word == str) {
                if (!wordsOccurence.hasOwnProperty(word)) {
                    counter++;
                } else {
                    counter = wordsOccurence[word];
                    counter++;
                }

                wordsOccurence[word] = counter;
                counter = 0;
            }
        }
    }

    let sorted = Object.entries(wordsOccurence).sort((a, b) => b[1] - a[1]);
    for (const [word, count] of sorted) {
        console.log(`${word} - ${count}`);
    }
}