string: get token from string and compare token from text file

i need to write a code on how can break a sentence into word and find out the word belong to.
example :
when user input a sentence cindy walk slow.
1.break the sentence into cindy,walk,slow.
2.get each word belong to and display.
- cindy is a noun
- walk is a verb
- slow is a adjective.

i had make 2 file text:
1. verb .txt
2. adjective

verb.txt

eat walk ran sleep

adjective

fast slow pretty

this is the code i had done:

const size=100; //size of string char string[size],temp[size][32]; char *tokenPtr; int i=0; cout<<"input string\n"; cin.getline(string,size);//read line of string /*function char *strtok(char *s1,const char *s2) breaks s1 into token(word) separated by character in s2 */ tokenPtr =strtok(string," ");//pointer to first token while (tokenPtr != NULL) { strcpy(temp[i],tokenPtr);//save the token to array i++; tokenPtr=strtok(NULL," "); } for(int j=0;j<i;j++) { char word1[30],word2[30]; ifstream dictionary1("verb.txt"); ifstream dictionary2("adjective.txt"); while (dictionary1>>word1) if (strcmp(word1,temp[j])==0) cout<<temp[j]<<" is a verb \n"; while (dictionary2>>word2) if (strcmp(word2,temp[j])==0) cout<<temp[j]<<" is a adjective \n"; } return 0; }

the output:
input string
ali walk slow
walk is a verb
slow is a adjective

what i want to know is how i can get word ali belong to?
i didn't want to make a text file that contain of the noun.
if the word not in the verb.txt and adjective.txt,therefore it is a noun..

please help me..
anyway thank you.