# author: Your name
# created on:
# description: solution for assignment no. 
# read command line option -file
# open your text input file
# read each line inside your file
# and: replace string "NP" by string "nominal phrase"
# or: check for string "ACGT"
# open your text output file
# write your changed or found lines to your output file
# close your text output file
# close your text input file