#!/usr/bin/env python3

def number(Model):
    prods = []

    number_expand_arg1 = Model.productionstring(
        name="number_expand_arg1",
        string="""
        =g>
        isa         math_goal
        arg1        =num
        ones1       None
        expand_slot None
        ?retrieval>
        state       free
        buffer      empty
        ==>
        =g>
        isa         math_goal
        expand_slot arg1
        +retrieval>
        isa         number
        number      =num
        """
    )
    prods.append(number_expand_arg1)

    number_expand_arg1_done = Model.productionstring(
        name="number_expand_arg1_done",
        string="""
        =g>
        isa         math_goal
        expand_slot arg1
        arg1        =num
        =retrieval>
        isa         number
        number      =num
        ones        =one
        tens        =ten
        hundreds    =hun
        ==>
        =g>
        isa         math_goal
        expand_slot None
        ones1       =one
        tens1       =ten
        hundreds1   =hun
        ~retrieval>
        """
    )
    prods.append(number_expand_arg1_done)


    number_expand_arg2 = Model.productionstring(
        name="number_expand_arg2",
        string="""
        =g>
        isa         math_goal
        arg2        =num
        ones2       None
        expand_slot None
        ?retrieval>
        state       free
        buffer      empty
        ==>
        =g>
        isa         math_goal
        expand_slot arg2
        +retrieval>
        isa         number
        number      =num
        """
    )
    prods.append(number_expand_arg2)

    number_expand_arg2_done = Model.productionstring(
        name="number_expand_arg2_done",
        string="""
        =g>
        isa         math_goal
        expand_slot arg2
        arg2        =num
        =retrieval>
        isa         number
        number      =num
        ones        =one
        tens        =ten
        hundreds    =hun
        ==>
        =g>
        isa         math_goal
        expand_slot None
        ones2       =one
        tens2       =ten
        hundreds2   =hun
        ~retrieval>
        """
    )
    prods.append(number_expand_arg2_done)

    number_contract_result = Model.productionstring(
        name="number_contract_result",
        string="""
        =g>
        isa         math_goal
        result      None
        ones_ans    ~None
        tens_ans    ~None
        hundreds_ans ~None
        hundreds_ans ~busy
        ones_ans    =ones
        tens_ans    =tens
        hundreds_ans    =huns
        ?retrieval>
        state       free
        ==>
        =g>
        isa         math_goal
        expand_slot result
        +retrieval>
        isa         number
        ones        =ones
        tens        =tens
        hundreds    =huns
        """
    )
    prods.append(number_contract_result)

    number_contract_result_done = Model.productionstring(
        name="number_contract_result_done",
        string="""
        =g>
        isa         math_goal
        expand_slot result
        result      None
        ones_ans    =ones
        tens_ans    =tens
        hundreds_ans    =huns
        =retrieval>
        isa         number
        number      =num
        ones        =ones
        tens        =tens
        hundreds    =huns
        ==>
        =g>
        isa         math_goal
        result      =num
        expand_slot None
        ~retrieval>
        """
    )
    prods.append(number_contract_result_done)

    return prods