dictionary

function solve(arr) {
    let dictionary = {};
    let definitions = arr.shift();
    definitions = definitions.split(' | ').forEach(line => {
        let [word, definition] = line.split(': ');
        if (!dictionary.hasOwnProperty(word)) {
            dictionary[word] = [definition];
        } else {
            dictionary[word].push(definition);
        }
    })
    let onTest = arr.shift();
    let commandParser = {
        'Test': () => {
            onTest = onTest.split(' | ').forEach(w => {
                if (dictionary.hasOwnProperty(w)) {
                    console.log(`${w}`);
                    Object.entries(dictionary[w]).sort((a, b) => b[1].length - a[1].length).forEach(x => console.log(`-${x[1]}`));
                }
            })
        },
        'Hand Over': () => {
            console.log(Object.keys(dictionary).join(' '));
        }
    }
    commandParser[arr.join()]();
}