inaccurate extract result

[curiosor]

textblob.np_extractors don't work properly in some cases. As we have below code:

from textblob import TextBlob
from textblob.np_extractors import ConllExtractor, FastNPExtractor

extcr = ConllExtractor()
while True:
    ipt = input("type a setence > ")
    if ipt == "q":
        break
    blobs = TextBlob(ipt, np_extractor=extcr)
    print(blobs.noun_phrases)

then run a test:

type a setence > Adam saw a white cat sitting on the tree.
['adam', 'white cat'] # lost tree
type a setence > As soon as he passed the aisle, the other one took his seat, and lit up a cigarette.
[] # lost aisle, other one, seat, cigarette
type a setence > As soon as Adam passed the aisle, the other one took his seat, and lit up a cigarette.
['adam passed'] # wrong noun passed, lost aisle, other one, seat, cigarette
type a setence > As soon as Adam passed the cat, the other one took his seat, and lit up a cigarette.
['adam passed'] # wrong noun passed, lost cat, other one, seat, cigarette
type a setence > As soon as he passed the cat, the other one took his seat, and lit up a cigarette.
[] # lost cat, other one, seat, cigarette

Using textblob version: 0.18.0.post0

[curiosor]

I found out that in textblob noun phrases need to be at least two words except names. Is there any configuration to customize this feature?
Besides, there are still problems

type a setence > As soon as he passed the narrow aisle, the other one took his empty seat, and lit up a half-used cigarette
['narrow aisle', 'empty seat']
type a setence > As soon as he passed the narrow aisle, the other one took his empty seat, and lit up a half used cigarette 
['narrow aisle', 'empty seat']
type a setence > As soon as he passed the narrow aisle, the other one took his empty seat, and lit up a handmade cigarette
['narrow aisle', 'empty seat', 'handmade cigarette']
type a setence > Adam saw a white cat sitting on the blooming cherry tree.
['adam', 'white cat', 'blooming cherry tree']
type a setence > Adam saw two white cats sitting on the blooming cherry tree 
['adam', 'blooming cherry tree']