The rules that use the category "<teen>" are:

<degree_number-not_initial_zero-90-not_digit_sequence-pl>

<teen>

<tens_number-complete_number>

<teen>

<tens_number-pl>

<teen>

<tens_number-not_digit_sequence-pl>

<teen>

<tens_number-not_digit_sequence>

<teen>

<minute_duration-pl>

<teen>

<tens_number>

<teen>

<tens_number-complete_number-pl>

<teen>

<degree_number-180-not_digit_sequence-pl>

<teen>