import sys
import pgf

sys.stdout.write("loading...")
sys.stdout.flush();
gr = pgf.readPGF("../../../treebanks/PennTreebank/ParseEngAbs.pgf")
sys.stdout.write("\n")

we = pgf.readExpr("UttImpSg PPos (ImpVP (UseV try_V))")
print gr.languages["ParseEng"].linearize(we)

sys.stdout.write("start cat: "+gr.startCat+"\n\n")

while True:
	sys.stdout.write("> ")
	line = sys.stdin.readline();
	if line == '':
		sys.stdout.write("\n")
		break;

	for e in gr.languages["ParseEng"].parse(gr.startCat,line):
		print e
		print gr.languages["ParseEngBul"].linearize(e)