texto = """
ontem ea foi lá cum uma cara fea demais
e' falou c'ocê na parte da tarde
o' como que eu tô tá vendo
  """
tuplas1 = [
    ("ela", "ea"),
    ("com", "cum"),
    ("feia", "fea"),
    ("ele", "e'"),
    ("com você", "c'ocê"),
    ("olha", "o'"),
    ("estou", "tô"),
    ("está", "tá"),
]
 
# cria um dicionário com as palavras acima, assim fica mais fácil procurar depois
map = {}
for novo, velho in tuplas1:
    map[velho] = novo
 
novas_palavras = []
for palavra in texto.split():
    if palavra in map: # se a palavra deve ser trocada, troca
        novas_palavras.append(map[palavra])
    else: # senão, usa a mesma palavra
        novas_palavras.append(palavra)
 
print(' '.join(novas_palavras))

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