Inconsistent tagging of `plastic`

[AngledLuffa]

# sent_id = reviews-361545-0004
# text = I availed myself of the wash 'n fold service, taking just about a year's worth of dirty clothes in and getting back neatly folded, clean clothes in clear plastic bags (I'd originally brought them in, in six large yellow garbage bags).
31      clear   clear   ADJ     JJ      Degree=Pos      33      amod    33:amod _
32      plastic plastic NOUN    NN      Number=Sing     33      compound        33:compound     _
33      bags    bag     NOUN    NNS     Number=Plur     29      nmod    29:nmod:in      _

vs

# sent_id = answers-20111108100523AA1i7no_ans-0003
# text = would it help getting an aquarium cage or a plastic see through box so it cant escape i can buy it a wheel
10      plastic plastic ADJ     JJ      Degree=Pos      13      amod    13:amod _
11      see     see     VERB    VB      VerbForm=Inf    13      amod    13:amod _
12      through through ADV     RB      _       11      compound        11:compound     _
13      box     box     NOUN    NN      Number=Sing     7       conj    4:obj|7:conj:or _

# sent_id = answers-20111108100523AA1i7no_ans-0005
# newpar id = answers-20111108100523AA1i7no_ans-p0004
# text = Yes I've had 53 different kinds of rodents and two were dwarf hamsters they flatten into a pancake and slide right through the bars and are able to open the door so yes a plastic cage will be good
36      plastic plastic ADJ     JJ      Degree=Pos      37      amod    37:amod _
37      cage    cage    NOUN    NN      Number=Sing     40      nsubj   40:nsubj        _

# sent_id = answers-20111108103211AA4XhnU_ans-0007
# text = Add only silk plants as plastic ones may tear up ur bettas delicate fins.
1       Add     add     VERB    VB      Mood=Imp|VerbForm=Fin   0       root    0:root  _
2       only    only    ADV     RB      _       4       advmod  4:advmod        _
3       silk    silk    ADJ     JJ      Degree=Pos      4       amod    4:amod  _
4       plants  plant   NOUN    NNS     Number=Plur     1       obj     1:obj   _
5       as      as      SCONJ   IN      _       9       mark    9:mark  _
6       plastic plastic ADJ     JJ      Degree=Pos      7       amod    7:amod  _
7       ones    one     NOUN    NNS     Number=Plur     9       nsubj   9:nsubj _

so perhaps plastic from plastic bags should change

[nschneid]

GUM appears inconsentent as well. I suppose this is especially hard because historically the noun was zero-derived from the adjective.

[AngledLuffa]

(@amir-zeldes)

[amir-zeldes]

Hi guys, seeing a bunch of these discussions and some tagging me - I just wanted to say I'm on vacation but will take a look in about two weeks once I'm back.