EasyNLPnlp-012

Lemmatization Map Lookup

Problem

Map each token to its lemma using the provided dictionary.

Fall back to the token itself when it is not a key in the map. Return an empty list for empty input.

Hint

dict.get(key, default) provides the fallback in one call.

case 1

in: [["running","cats","was","better"],{"running":"run","was":"be","better":"good"}]

expected: ["run","cats","be","good"]

case 2

in: [["dogs","dogs"],{"dogs":"dog"}]

expected: ["dog","dog"]

case 3

in: [[],{"x":"y"}]

expected: []

case 4

in: [["a","b"],{}]

expected: ["a","b"]

Starter codePython

def lemmatize_lookup(tokens, lemma_map):
    # Your code here
    pass

4 test cases · run your code against them in the editor