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We conducted our study using the BNC since it is a general corpus with a variety of domains and genres. However, we also wanted to check how the classes are distributed in more genre-specific corpora. To do this, we decided to study the following corpora:

the Child Language Data Exchange System (CHILDES),   which contains adult-child conversations,

the Basic Electricity and Electronics Corpus	(BEE), which contains tutorial dialogues from electronics courses,

the  SRI/CMU American Express dialogues (AMEX), which contains conversations with travel agents. 

% ODSTĘP


Answers provided to query responses (BNC) in \% of the total per category are presented in the table below.


% TABELA
Category
Ans. to $q2$
Ans. to $q1$
DP 76.85  62.96 
MOTIV 78.05  51.22  
NO ANSW 80.77  11.54  
FORM 68.75  81.25 
IND 53.85  100 
IGNORE  50  16.67 


% ODSTĘP

Now we may present a summary of  the distributions  in each corpus (in \% of the total, without CRs).


% WYKRES
DP, value=BNC: 49\%
CHILDES: 25.58\%
BEE: 80\%
AMEX: 100\%
IGNORE BNC: 3\%
CHILDES: 39.53\%
BEE: 2.86\%
\% without CRs


% ODSTĘP

In what follows we will take a closer look on classes distribution in the BEE corpus. Let us remind that this corpus consists of task-oriented dialogues, thus it may be noticed, that DP is the largest class of q-responses observed here.


% WYKRES
